SCIENTIFIC ABSTRACT RIPAN, R. - RIPAN, R.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001444910013-4
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 13
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

IF w v v . w . - V, V - - - -
y A I w 11 U 11 4 is W U0 A v 111JURNUUM 42 41 adjudge
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go co: a MWIF apparaftLS for Altarimll in v&cQO- R. Ripon. Bdd. sac. slitwe Cluj 7,
:t-)4-6(lW-3)--A simPic 313Ction filtration app
OaC
1l
.
a
Ow" wPn. Of the original liq-r
and washings is dewfibed
.
C. H. P. Uffreys
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goo 0 0 41 0 o o 0 0-4-0 0-0-0 W-W-W--w W W-ar-W W w w-
0 0 0 0 0 0 0 0 0 0 0 di 0
0,14TV;
*all Tew"IA a IT JU It M 11 At n is U it M Q 4.1 a it * dro
f 24 22
a L 2--t I _r, --b-- A- -Lk a P, r Q N 1-1- -4-y- 0 1 --L- AA-K- Ix ~VV tt I - t , 0 r I I i
. - I I- - .". -1- 1 1
Formation of taswWc saiNcylatel; with uratropine- X,
Ripan anti S. Cosma (Univ. Cluj. Rumania). A not. iri. 00
anniv. Jassy 1. 29. 51-M(1943).-The following Aunnine
0 06
complexes ers, prrpd. by treating lh~siill ill hot 1110
air with salicylic acid (X) in hot VON I Gild no -r-of'sto- 00
Tivir fursitul" were detd. by mlalv-i for -00
8; pint, (Y) I
'he metal ni" for N, ZnX,Vs-3140 froul ZDI -NOO)J-0140;
ZnSO.Y.1011A) and ZnX,V.2ffsO (1) fruni Zts.4;0,.7lJ,(); -00
I a)-A) from ZnCO, or Zti(OAc)r 211.0; CtINOIXY.111110
mod 01IN0,4XV.7110) front OWN0.4-411A
lioni CAWAO.-2160; llg.X.Y, from IlliNo. .11,0
and futuiiis IINO.; Ilig.X.V, itota llg(N(),),.mll,0 And zoo
fooling IIXOI. CUXV.51110 ffOul CU(NO01.31110 of
C.SO.-511.0; Cu,X.V.511.0 (-- CuOAc.11,0: Cu.X.Y
from Cu(NO.)..311.0 and 11NO.; Co.X.Y..1611,0 from =00
040A0,4111.0 or CoCO.; and NiX.Y.3110 front
M(OAc),. The wontin- oblained Itoto alk. .,Ill. air ;4 0
Go hydl.t~J. (Too, .,J,t Ju., A11hyd.
more sol. than thr V licluotic.. less bol. 111,411 the 1111lates 300
00
and aketates, and their degree of hydration is It" than
that of the inorg. acid-Y ammincs. Ifigher orders of
arnmines are formed in acid soln., e.g. Cu.X,Y. Slightly zoo
(11530CII. VoCtstlfiC ~113 HkC th~ -t"tl - ~Iilytatl tend ta goo
Inern arn-ines poorer in mols. of V. The struc(ure will 300
be studied in a later note. Janet E. Austin
ago,
tie
WO: S Iffift-II.t ~LWWIC-TW. 9 tie
Q., J-
0 U n AT M3
is a 1, Lv #1 K a W Q K Ill OW X. AA I S kl IW 0 4 - I W N 5 Al a 3 a
a a n I
0 0 0 0 0 0 0 0 0 0 0 0 & 0 0 0 a 0 0 0 0 0 010 0 0 0 0 * 0 0 0 0 0 * 0 0 0 0 g

N 11 30 31 Ar 13
14 is 16
14 15 16 At st is v 41 a .1
0 d6 coo
9 A .-.I . u ix w Et+6
it
11 a k j
"
I D 1.0 1,601-11
,
!v( ties
-
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A
Int 41091111 It'd 11011 111 loit &4 trilul
I III)
t
-ppmaratioll fillets I.I.ItIlIth 14'J.- ."At 1, 1
00 .." 11 ... I. k 1,11 1 Mdl. ...t .., :
(h"',
00 'I.ghtiv iu-pj w ;,IL.
(Uot impre ajaii ro ing. "ro um [0-12 cv. vmwd. If( I
311if fill. t" I.'AJ Cc. %,Idl :1 -1 1(. KI I.,ij
.
.,f 'kid ~Al, -1.1. al"I I.,if lined Ow ".11:.M.d It-
Add mwilice, 1.7t-'_15 m. itt III, ms, -111 1,.j
Aft.-, a f.. .1--c it ...... gh , filt-olt vmc,bb mid
144111 tile I)JIL with 2~': KI 1,6481., th"I 3 1 .... I-I
sialer, 1 21 little% %ith mitt wafrt,mid filudly WItIl.11-Alld
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er
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ng IN rtirup %righ fh(-
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Ott f
if
A Iti. i
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go
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the determination of
00 -4 A a9w volumtFk f0iltbOd (Of
nd 6-69(we Vc'lm
Ralucs
dd
W
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v
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so ". 1- -1 1- lh~ -d .00
t'f wlc"At"- The i661"Ir rcti~liorl can alw) be u-1
00 ftjf (fit- volunictric detil. of elclutv~. l3pt. the telcnate
09 milli .1 kilown (IIIAntily of (1.1 V ANNO. -,Ill. and titratc
the ritce- wills KCI -In., in the Int-ttzoev ,( tim-ge-vin
00 ati milicatnir. The loll t4 tilt u4n. ~htnsl,l lit- &Ikout 7 o
et the tart. FrantiAtt Kerfe4z
SOZA see
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S a - I L A OTALLUROCAL LITFOIATLAE CLASSOKATOCO Loe
Ji~ wee
.411t, CIO t3ttl
S. Wit I - I I
u

0 0 6 0 a 010 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0010 0 0 0 00 0 00 0 0 ***-as a @-*JAM GALOOO 00 0 00 0000 *4141.

W- WT W
, : - 1 0 ;-; ; ; ; i -;- i -0 i
- 0 IFT ~ - 0~ t ~
~1 i a J. Z .19 .7 P A S, 11 -7 Is Ak a P. x o 9j ji of dto
U 1 f. V T~ A M fill It, j- i a or R, a- -4 -L--rt'
-0i
Physictichemical studies oil the constitution of helerlo
poly acids. V. 12-Tun4stagilicic acid, R. RjPjj& in-[ 1
66 Popiwr. Iful. Siv. '4imIe Cluj 10. .0
00 C.A. 43, !Ah.-Cimilurtonictric titrattim of Ii.:N
tW,Ch).1-xl1,O will) Ktill 9.1%, all inil,ction 1-int f,,r I
*0 -quivs. of It, corresponding tn - 14"K011
+ IIK,W%'Lh + 1211,1). 'rhe indicat,ri exi't.m.
if the pyratunKstate tadic.il %.is affirmed to)- furtlur
titration of the Ak. vAn. with AKNO,. Three infli-cti,m
lioint!a urre obtained corresrmnifing to:
t- 16KOil + (;AgNCh - GKAj;W,(.h + K.1,
,;KNO, 4- 1*11.0: + If;KCjIf + MAgNti: 600
SiO. 4 IOKNCI~ 4 12111P; ll'Si(%%Yv
K A it Wi6, + A go. z00
IIIK(-)Il + l6AgNl,), - GAg,W,O, + Ag,$iO,
16K N(), + QUO. Gravinictrie detnA. on the mmiltit.r.
0* w4m. mrofirwrif thew rquations. V1. The periodic roe
acids. Ralurn Rilmn and Alexandru liur&' . Ibid. 1:0,
of
6-Pure Will N and O.Q.1 N 11410, %;1% titratid, r"lo
go .1th (I I N K011, SLIOll, an't AKSO' 'in't (Ile-, '1 000
Xnalinhio- rotbofmw All gavo, only v%o infle-viton Ininit,
voriviliouiling toi one itiol live rquivii. oil hydrogros.
firtice 4 of the If ions are liound mote strong1v than ilit 4
fifth.
64, Joe
ties,
I L A -(To1kUVLV Al LITFWAIL4t (LAIWICAMN
0 wee
;CP
U tt 11 -1 it hl I I V nd 0 of 1 N 64
4 1 94
0 0 0 0 0 0 0 0 0 0 0 0 0 01
; Tt? 0 0

comewAmted Italuca RVIS
-Nds AcAld. 'j,
Itust C. ulmn.
P~ho,krr Nowdomit. Bill.
.)III*. of Milo. Contain a ceirtain too' of HKPO.) mols.
,,;ith .1 totally dimacd. hydrogens. That txpLdna why the
I Wn. twast. of Iloilo. IlItTVILW4 with Ito Mlefl. In Iflo.
IIl,wk! and ariank- o"It twhAvo similarly.) In a oollit, of
4 luols. 11411O.A. 11.0 the awriv 14 III(IlOol W,163 M
the ORWAX-11, ctunt 1) 111. lo millpal"I will) IIA14)*)
.. ..... 1,. 0.11143 and ds~wi, ma.t. 11.111M! f.w Is micts. .I
14 14). -1. O-Ow"I A,,tlc-

ftxi~Z e ,u1 '7
the andlyals of liGht alloys I A now lpsiflim-lile
III thod b" 1h@ isplif diftWidnallon of Aluminum Holm
40. IN . Yliiml A. 1. 1017, 11( 109) A I,.,,
I.d ... Ili 4 Ili Al dt v,,s,lg iml ti-ir thais it fill x A1,1 1,
15 fill. 11.0 is livatcd (to W-7'11* and 4.6 fill, (if A,
:
ic avid wIll. (3A X. fit 40 list. IflOlf 114added.
ii Wi I,, I. *I irt"t, a tid Am L of aft vsh .1 -1P -Ijk. .(I Im-
11"Ifill fit If'O is x4fil"I ffTilwisc* After plitit the ~An I-
Ix)i1ed rtvr another :v-jo IIIIII. With Continuous silirring The
t. the" fillet-1 th,,.,,Ch . aft- -41,114e and ."A-l It?
tilite, 11ilh a .111all qualitity of .4 bot vra'11 ..Ill 1-1.1, I.V
I , Illill and
-ilifix !) fill- Illofillpin MAII in b0f) fill. JIM for :.
then misiuK % ith 0 fill. I)[ the twenmic arid wbi. im %ia, n-d
t.r file II1,11si.; then washtil 4-5 thurs with .1% 1:1011 lot If,()
The mitt is dried at 106 - 105* for 1.5 firs. and weighed. It
i, p-0.1,- to lmn.fmm file ppl, Into AIV~ which 1, 1,-
hVICTO-c-lilk- fINAll file mir obtalurd Iby rt"We'll I'leth-1.
Ily the mme fliellIM other trivnh-Ill ch-Illeill~ Call I.- J"111'
all'i 44-1111 1141111 hivilleut OIIJ 11111villrot "lluills
Getharil Aiallefivi

A stud(. of the preparation and constitution of periodic
ackle R.Ittea R1 t,,.t A Onca (Vitly. Chij.
- ,C Rep~
R111114 LO, Antaffir .1 'f P"thl-ve Restia"e. Sffl.
m"t F, An. . . A, ,
S., It, 14 lip.
(19.. i, I ........ It -usinowtv) To prep It.It%: (a) A coont.
m-lo of KIO, i% killed with the rtluiv. atut. of &q. 114C4.
u'KIO. + 11.0 -f 21L,Cl. - U..1M. 4- '-'KCI + NMI;
?4-0.0. -4- 211,S0. - IWOLN + 284S0,. (b) When boiled
In water KIO. 6 ti-ansfor-ed qua.t. into K.1f,1.0.. -hich
form* Agolrot when treated with AxXCII. Dil. 1ICI is
added to the hot uAn. of Ag.1,0. Otinp. of water bath).
The 11,1%(Ek, Lrystalliz" on cooling. W C(h is IIA&wd for
:14 It- v- a N 11,10% voln. The CO, is then rvmovni by
lieuIing. The cryst. I-evidue (achl) is dis,"ved in the min.
attic. of JfO "it recr"d. Unchaniml 11sl0a remain- in
~Pht The acid wai thus prethl. in pure form. Thk
n%vth.%( of Sirclut, ~.tshli,hm the (i'Cntt%L% Of the ACW:
with 0.1 N KOiI (2 hillt-viloti linintil
Of "ith 11 1 N ASNO, IIJA k colorless anti itable.
Cwthard Aufl~c-

C1+
Physicolihemicel study ot the constitution oi heftropoly-
adds. VII. A ~ solistions of bork add. Raluna
Rijiv And C. rMunte (Univ. Cloi, Rummaihtl A xalele
Rol, R-Jxe. Seel Ttioml, Abst . Fs7
St. A, 1, Mow. A. 24 ill, (IIIIOX Fronch mmmmr~,.
I C 1 43. 374 1. (.) 11'*W ovit .1- Iml 1'.
~(111,W.1hY, dilo. Ltw: its A-len, con.l. inctea" with os
TV tw In "THICII. owin 11 to the formation of 1f.(00.) ill file
In h I The dis-ell. Coo.t. deLrmws even holow
1,
11. 1 M. (c) In a coacd. soln. the anion HIB4Ch undergoes
hydration (1) BOHI- + xHjO tx [BOHI.oeIIgOj- m
l(ROjO..)Ho. 4. ))-. When neutralized to pil (I the
following reaction takes place: (2) BO.O.-Ho. I) +
mKOII - [[BOA1Hr% . o-M. + a HvO. G. A.

A now procedure for the preparatioa of bismuth from suJ-
Ado or". R&JUVA Ripan and Cinnfin Liteann i J7jjjV. ClUj,
Rontania). AcaJ. Rrp. Populirr Ropnifne, /in/
Srr. Alai., Fos., Chim. 2, 257-#NlV54)XPro:nt:h Anunarv)-
Pulverized urecontic. 37.5% hi NexiXisetlat 5:41, tna qfrung
currentofCl. Bi chlorides dist its (while the most. is hemed
to 7(X)*) and recoverril in special glass condoisers, div-1ved
in 11,0, acidified with 110. and filtcn~d it ncccsz~y. 'I he
residue in the chlorination lubc is also treat"I with cwml.
IICI, filtered, anti the :.' filtrates united to t)rcll;LtC (A) JiUIC
metallic Ili or (b) Ili subuitrate. (a) The filtrate R lorti"lit
toot pit ofabotit 2 with coned. MIMI; yellow ui(X)fl plits
quantitatively. It is washed by decanting until a* smal
amts. of Fc and no Cu arc detectable. treatcd -itVc,-ncd
fiCl. fill ered. and 5% excess IfCI is added. Fc bars ar.
then ittserted on which Ili deposits within'214 hrs. Thct4ixt
is then heated to 60~20* to remove Asill anti "mic.
and decanted 15 times with 2% HCI water until no Fe cm
be detected. filtered. and washed with J120 tintil free #)f Cl'
then with EtOll mid Et.O. The yield is 88~~- (hi Th
filtrate is treated with an excess of S11,011. Hi and F
ppt. as hydroxides and the Cu cumplex is out It
decanting. Plow. is dissolved in Concil. 11N0.. fifterell
N11,011 is addetl to the soln. but not enough to lipt. Its
droxitics. On adiln of IIA. Ili ppts. quantitaiively as th
stiltnitrate(at pliallprox-2).dmant"16-7tit:ics.itli llN(
water Qjll - apprux. 2). then 6-7 times with di5t.l. 11,4.
filtertA. dried. The lield as Bi equals 92%. G. A.

11110.1 its folluliummos by tile (Ito A-Ay.
Gad Rep. 1"'Puble.
2, .173 N)
of "c
I" ivrev. It .,", found ht
iy he -,-I Whell Ill.- rAd" twt."Il
u., 1. -10% All or" lost it
1; 3
1,mrr Ali toncus. To AVIIIII Or Illillittlite 1OW4 it ill teMIll-
ruded (st uie twice am much flux us usual (I Ali: .10 NO in
c,ti,elLitsou or vitti. tit tile Tr with I *.. A.

RIM. Raluca
Tivice the vol. of boiling 11-0 kaffiled.
i"'I'llic'n fititcrel I throtigh a Widmer (tistact and
hed with [tot 5% IINO,. The ppt. is trmisfeurd to a
The Ere ation of ottre ammonium mollame, (NH,)r- flask, trCated lvidt lint disid. 11.0 (5:1), and hcatcd to
par , I I M21 btitpilgl ji-jillm . ..... - ill it watrrhaill. Nil, is -.1dded, with shaking; the
711-pl-A. Utlea. (U S-0121. is Men (ificl-M. The 611rate is boiled to expel the
Rnnfflne, 13W 5191fli. Z)rr- mal., pt.., f-Atryt. 4. 'leU excms Nil., dild. with rold 140, and treated wliilc beitil;
(Freitch sommary).-Ore contg. Wl'o ATO-St is roasted for
Mirred with a slight exccss of cotted. IIN0j.
stirriog in a specialfurnace acid pp1q cc 5
,r~l, br%. at 650' Avith coutinuotts awl iv, littered on a Hfichner housel, wash I I -(S
Ellitil 60-70 1/0 in oxidized, The oxidation is ceii(inited-with tiltics with 1170 acidified with a few drops of It NO,, then .5-6 -
C"tlcd. IINO, in* porcelain containers ontif A Mns, is tioles with ItiO. If ncccs~ary for further purificaGon
the acid is tran4erTt'll 10 a f1.1%1,, ;111 Cq0:jj Vol. of hot 11:0
isadded, aoil NII, i~ iotroll,ice,j Chile tile mixtore is shakcTi.
It is then rillerch, and the filtrate k cofica. on a - a I.
,tt!alit 1, ti
fittercil. and rcvry~ld. vield G. A.

~r
I

7-
A new Iravimemc metlioa tor the determination dCp_dfa_l-
the presence of ldqd ions. R. R' I Af
FWiala Cluj, Nudit cricetiri f1iint. 3. Nn.3/4,
i'he method is Imsed upon the fact that PbSO4 di-wilves, in
I Ba(PO,)sl Ea u libertting the equiv. amt. of BaSO4. Which
is filtered off, Itented, and weighed. j8a(PO,).jBajisprcpd.
Irpm BaCh.2H.-O and Ma(POA)i. f5of

RIPAN$ R.
"Physicochemical study of the constitution of hetr'opolyacids. Note 5.. The phospho-12
wolframic6cid. p. 215. BUTETIN STIINTIFIC. V01-4, no. 2, Feb. 1953. Rucuresti
Rumania.
SO: Monthly List of East European Accesssions, L.C.Vol. 2, No.11, Nov. 1953, Uncl.

~.T--, 7-1, t- a
"Pet"'i"e *~ !,~ -;e -or)--) -o,,, ,;e -nc-le
I.- I --'L 7 - , , ~_ . - . J_
I
7 7,~ r In .,:f% , ~ - ~ (, -, A--- -.e. "Pev-ai ~Ie "ni. 2, .

14 11 , , TI -I 'I ,~ (: 'I
-i-1(, 'nor-! 2-,-o-' '.
ill I,,+, ~! rn-c-', ; li~!7 '-:etern ni,. 3-; ~f-s . L' ,r- - . - - rar_4 rll_,e . 11
.,1,1c. _ I -
, r , -,-p t
evue r!e - 1. f, -i i r! ol. 2, 1r !:, I- -c .

RIPAN, R.
Achievements and tasks in the field of chemistry.
P. 57
Vol. 4, no. 2, 1955
ANAISIE
Bucuresti
SO: -onthly List of East European Accessions (EFAL), LC, Vol. 5, no. 12
December 1956

. . . . . . . . . . .
ire,
RM. M17. . A - - I .
ti(M
French)~H
Ro%mind 1, c aci arl
mol - D' Occurs in coned
L9. 3.1ch as 112B.,
Lacrease in IK"I w-Irl'b! expected w SO a
Jissocn. c tAf.
a is dild. Both'the 4
H
Is
h * tcrexiin 9 c0
increase wi it lig to
.1,B
by , formation of a str,3ug Mcid, I deare fac'
HIB
fouowing eqnQ. HsBID, + 3H:0 ;='
f Of to
The ratiO %B
the occurrence of this acid is given-
ans- was cgl-d- - the assurn
H'BOj at VariGus -1 l0q)lmle and
BH+ + P1
that H,BO,, M=er fortnWj-ffjP()s and.,Hr
adds alm', this
Ve
beba
"7
01
J
- - - - -- - -. . . . . .

ro:. of eno(Uc.

A~,- Duca.
R
M
fla~txaint J, No
-

co itc 0-
t
prepd. by. the Addh.,of HIO, to HjOafid fiCrated tid
'

bona '
and N
metrkally- MW KOH;-~nmn Ine t6 Ag Oi ------ -
1. iid He-
1. show. br&"' af A iqulv.',Watomo~ ating-XIO
l
thrited Wi
'
4
I
i
W
v
.
TOs ~ho
KOH showed. two equiv. 11, ItoIiIS
bft:yvIthAg
1
_;W04,,
-the' q'Luicirivaieht. (1,0#)4- ion.: -, Treatirij Usloc 'with
jilso led to H4IjOp -wheriai th4iieaal6n of ~klxiu,10j aid 1COsi
gixie-NaWj; H#M-wlth Wj~
-
the r
prepd..b~ pptj.:tbe j~ivompd_~:*ith:
acid *1 -an&V4
21ch then fitrated -with KOH giwg~breiks it I
-iqtdv-,uitiDms-whir;e~s-*IthAiNOiuV ;br"-at_4H-
'

-AvUO,~`~, Therea f norma.-.
ction o
:at'thei foririadod-
atoms of
11,106 sow e witlf-COg, followed by drying to-reinove the. COi
and'dUa.t6O.OlNled,t6'136liOLi-whi ..was. titrated, with'~,_
,
J ~'and-10 A_
2
KOH to show breach at'- tzulv. ue t
'
`
OH to'
i
i
-
c 2- &
v
K
IM10a an , its~wsubsequefit. rea
g
_'KJO, where" with A9140i a-66ak at l0equiv. was
fotmd, inclicatidi MgslOs' - Frofii this'workit- ls'~Clondduw
that HIO#,Is a hOt I acid b~t HjIjO~- oad 11j,O&t sic
eropo i

t'd
~re
-e
0ai
to
ii
l
c
-
i
mer
a
Ad& a
o
IN
1
b
T
,
-7
y
T
~
7.77
W

RUM Rj MARCUSGj PASGUpNj Finding of products rich in tellurium in the nonferrous
:a-
metal induz#y and recovery of telluriumo p97
Vol#4 Noel/2., Jan-June 56 Bucharest
I
So: Monthly list of Feat European Accessiow (EEAL)p LC, VoI5 N9.10, Oct 56

Distr; 4E4j
Physical and chemical study of the formation of mol~~h
ILIDIM all
den In aqueous solutions. It. IR 0
populare Routine, Fill-arl-TrIll-SI.A.-r-
cercel&i chins. 7. No. 1-4. 23-13(1956)~Tlje following 13
ternary systems were studied by enuductometric, potentin-
Metric, and photo t i octd : Nt1ljPO,-~Nli,)C
M,h"hrHtO, HsFZ~N"1FZf.:,,N('-TjO; 1-131,04-flialyb-
dIc acid-H20. Heteropoly ions baying Mo/P ratios of
(1, 1.5, 2.5. 4, and 9) were formed in the Ist and 2nd systems,
and of 1. 2,9, 11, and 12 in the3rd s`ygem. Theionhaving
a Afo/P ratio of I is preseutatpH 2.'3-4tO and the ion having
a, MO/P ratio of 9 is formed in solos. -#here [Mol i'.. jifiC'Qjterl'~ spifif *W414S
old Ma -Indicate 44V the 4C~e~.Z.
Me)
Z4
T
0."
A R ter,
SZ*!~
4'SM
if" , , ' -
ma ono bet
.4 Oh
p
04:1441CAVapptiplew If -1 7jot th
cjytc~ an-1,14-mlitte~en -4-1
FT, u-&-t6m
~Ov-scpq--'491 ff4 sxemcling
U)"
4d'siiicbradlybdii kid (p-rcdombiapt
`X~ ti i.-": 2.
"moo. _F_
-57
br,the tonuat
a
A-

/A' sfudy of some moT I ~Xeq using radin tivo
,me comp e
R. Tli Sin. AlarctL. Bev. chisn., Ac
rip. Pa ire ine 3, 6Z12 1 French).-j
change tween Zu" ion and jZn(py 1 11 (1); [Zn(py~j Br2'
(U); [Zn(py)~Jl: (M); and jZn(py~I(SCN)z (IV) (PY
pyridine) was m ed at 1, 24, and 360 hrs. Results are,'
*
0.09, 3.04, and 8.38% exchange;
in the above order, for 1,
for U 3.24, 3.35, and 10. 13 %; for M, 0.98, 1.20, rind 6.83%;
and for IV, 1.39, 0M, and 9.84%. No rate wasts. or
are .ven and no conclusions drawn. -Sol
,
-1
-4
4
1
1
U
12.1
. as 14.23 X 10
0
were
X
,
ProdUcts
,
,
-
-
1, IV 8.99 X 10
1. Exchange takes place at two
Mf 3.64 X 10
,very different rates between Sr 4-+ and the two types of Sr in,

1
'SrjSr,(POs),j. Ap 16 to 39% of the Sr was readily:
%111
1
included that only atoms at the
exchangeable. It
,

RMANIA / inorganic Chcmi3try. Compl.:.,x Compci:--n~',s.
Abs Jour: Yof Zhur-TILhim' 'T 3, 1959, 7745.
ly~l) no
Aut'aor : Rjpan, Raluca..-, Marcu, GhaorGhe.
I--,. --m- ~-. ~ 1,
Inst : RiE~riian Acaaozy.
Title : Study of Structuro of inorganic Compounds by
1,Joans of Radioactive Isot-pos. 9-udy of the
I - U
Structure of Complcx Compounds of Zinc of
'(ZnPY2)X2-Tyl:o by Hleans of Radioactiva Zinc Zn65.
Grig Pub: Comun. kcad. RPR, 1958, 8, No 3, 269-273.
Abstract: Study of isotope oxchaD6e bet~.tioon coLipounds of
the ty - - - I-, SO-,
ge (ZUP5'-F,)X2 'r = C1 , Br ,
and Zn 5 ions in homo&,n--:.ous modium. It was
found that very slow isotojo exc.'aanae is ta-',,:ing
place bctwe,~;n thorn. This indicates stubility of
these ccripounds even in very diluted aqueouj sol-
C&rd 1/2

.T
A c atic. my
'~~Lp---d for De!lC-l',T'f.:,:IL4L,-,.-; C-C
7' 1 -.-N
has
mE t t.oc. )zE I -ng
-w-ith th~cle
it.
u C t
iw'h J chI t)a s e d o rl, L
r .)ci- c -~- ia -Lr.,e 'um lo e-le-tuentn' T--
,~ur c n 1; lyII I>e -~,,,ed Ss d i s s o Ived b,%r t re z--~
e c on I,-
i- rE7,-, I~s ob4 a ine di,r 1:
C.'j, and C;2H5C-li. A L. L e so ie,wha-, tor,
i' F, e~r, y aue, to ,he forma tCri o,- a
L ~ I
.2(l- rt a IM amount, of Te- t c e- i. ~,u i riatc e r r ors iinci u-ce"Al ty tie,
lorma~-. L.,r. cf Tle6 a ccri-~-ct ton factor is usea, w,, ich, Is
Cin do,&rm'-r.l.ng Te, there are added to the so.1--uticn.'
1() m- 36.0, hC!
0 ri. J. 0' a ffl4k"Te (1:1~ Of and 02~;~ CH lc~ Tii wa-,er,
ind 10 ml of ~I~v solutiorl of 1. Tl-,,e scl.-~;tio-j, witli the
1/2

RUMNIA Inorganic Chemistry. Complex Compounds. C
Abs Jour : Ref Zhur - Khimiya, no 14, 1959, No. 4gooo
Author : -Ripan, R. and 14arcu, G.
Inst : RumaR-an Academy of Sciences
Title : Investigation of the Structure of Inorganic Con-
pounds by the Use of Radioactive Isotopes. III.
Investigation of Isotope-Exchange in *
Orig Pub : Comun Aced RPR, 8, No 7, 655-658 (1958)
Abstract : The authors have investigated isotope exchange
in homogeneous modium between strontium hoxame-
taphosphate and Sr2t ions. A has been found 2+
that in the case of Sr f`Sr2 (PC)3 ) 6 -7 + Sr
*Homogeneous Ivedium. Between Strontium Hexameta-
phosphate and Strontium Ions Using Radioactive Sr 90
Card 1/2

Condc-mintion of ~ocfix M t _Zq
I _an itt In aqueous
by %wonp licidn. ap and jrad. r4p.
Populate Romine, FdMeChd, 31114); rolfchlfi Aim,
find potentioulctfic Itiethods
indicate two stable equil. in the conijensAtion of sodium
tungstate by strong nel(k. Oncoccursat the ratioM7111
(pli - 6.3), corresponding to and the other tit
6W:IJLL ' (p11 = 3.3), corresponding to IllikV4C~I) - --%
The latipr is stable also in dil. soln., and Luith forms are
unstable in alk. soln. The 2 condensed forms resist cfoubLg,-
exchange reactions, showing that the equil. are stabf;: and
well defincd. C. lleitner-Wi~i -

Rm1ANv,/P!iysica1 Chemistry - Solution. Theory of Acids a:.,d Bases. D
Abs Jour Ref Zhur Khimiya, No 19, 1959, 67354
Author ~ipaa, R., Duca, A., Calu.,~ Cleopatra.
Inst Rumanian Academy , Cluj Affiliate
Title Investi,~atioli of Concentrated Molybaenum Acids.
Grig Pub Studii si cercetari chim. Acad. RPR Fil. Clu,,, 1958, 9,
No i-4., 19-36
Abstract This investiLAtior, vas carried jut in order to determine
the maxiralm deGree of condensation of molybdeiluri acid
molecules as a functioii of concentration and solution pH
by conductometric, poteatiometric, gravimetric, and chro-
mato-aTaphic methods. it was established that as the so-
lution concentration increases, the de~~ree of condensa-
tion, the stability of the internal sphere of molybdenum
acid complexes, and the decgee of dissociation of
Card 1/2
- 30 -
f~UW'-N't'-1physical Mlemistry - Solutions. Theory of Acids and Bases. D
Abs Jour Ref Zhur Khirsliya, No 19, 1959, 67354
external H/ iOnS Increases up to a specific value.
Depeactinr~ op t,,Ie
L, 80lutiOll concentratioll and p11 tile
H04'602i molecule L'aY Polynerize:
246M0021OH12MO1.2042' -- R. Mocharnyuk
Card 2/2

.-"Formation of oxalatomolybdates in aqutous solutions. 1.
R. R* a IA. D at a id I - Ceteanti. Acad. rep. populare
e, i ia a L ztj, SlAiMieceldrichim. 9,47-65(1958).-
The reactions occurring in solzis. of mol% bdic acids to whicl
oxalate ions may be added ircre studied. The following
inolybdates were used: NaAfo0s, Hs-
[MosOls]. and (INH,)4[Mo-,0-,j. The effect on the system
*1140H, AgNOI,
(IXlo0,--:6C,0,--) by treatment with N'
Pb(Nr0Qj, the influence of oxalic-acid on molybdates,
and
and the elec. charge of the complex radical obtained (ratios;
IMoO,--. 1-30 CA---) werestudied conductmnettically.
Other methods used were chromatography, electruchroma-
tography, and polarography. The conductometric results
show that with every kind of molybdate studied, the ratios
obtained on the curves are reproducible at IW04--.1.2,4,
.indtlC,0,--. The reactions between molybdate and oxalic
acid occur step by step (up to the raio lMo0j--:6CI04__)
thus proving them to be reactions of substitution. Th~
conductometric study enables the detit. of the degree of con-
densatiou of the isopolymolybdate from the curves ob-
tained. From the paper chromatographic and polaro-
graphic study, It is possible to conclude that the major ac-
tion of oxalic acid on the molybdates is the formation of a
complex and not condensation. Blectrochromatoggaphy
.showed the charge of the oxala tomolybdic gMp ex ' Ito be
I
_P1
negative. The following equil. exist in aq. so1n-.MXjMo-
04-MA01) 2HIO Xt[Mo0i(CI IO&bl +4H i1tj0j,X'(h'fA'
+2HIO
+RIO
(CS04bi
RIO \11MONCAA + 113C104.
ri
C,
r'.
-
C. l1eltner

W
RUm'JIIA/Inor,,pnic Chemistry - Complex Compounds.
Abs Jour : Ref Mur Khimiya, No 1% 1959, 67499
Author : Ripan, R; Duca, A., aetami, I.
Inst : Rurmnian Academy, Cluj Affiliate
Title : Study of the Formation of rixalo-Molybdates in Aqueous
Solutions.
Orig Pub : Studii sicercetari chiri. Acad. RPR Fil. Cluj., 1958, 9,
No 1-4; 47-65
Abstract : The interaction in aqueous solutions of molybdates
(Na2MdO4, (NH4)2140207' '[6D105018_7and (NR4)9- Mo 7024-7)
and oxalates was studied by conductometric, chror-atoGra-
phic, electrochromtographic, and polaroGraphic methods.
The formation of complex oxalo-molybdates was established.
-- Author's su=mry
Card 1/1
- 47 -

1~: ib 1c n,
-jol. 3, no. 1, 1
!Qro
r --n ;,ccossions
I C

in
,-,cn 7n
r il liy ic 0

Ur
b
in '3 1 L,-, 'U'
-rit,-'c
C
Tno f7a -n ic n, em i s t ry .Conplex Ccin-poiinds
Ref Tha--IrMn, 19'-9, No
Rip~~n P,.~istavu, C.
Hungarian Academy of Sciences
Fhyzicocliemical Study of the Aqgeous So%tian of I
Metatungstic Acid HIOUq-qcw!;~07 61
Nr I
:)r'!- : Ac-a chin. P.3ad. 3--~,.ent. hung. , 1958, 16,
3 3 -'9 0 U
iAbot ra:! : By conductoi,,ietrIc titration of inetatungst"I acid!
with solution, of ITaOR, IUILOH, ',,Ial?C-
v31
gumil-dine, salts of Ba, Pb and. TI, it was astab-
liShed tlmb UVA corresponds ir, p1henol sol-ution
to 11J0['k')-(W207)63'71"120, RrA i3 a strong hexabasic
acid. The last 4 a-oms of if in the outer range
oi' HTA are characterized by considerably loj4er
Constants of ionization. in the process cf neu-
tralization, -4ons of pyrotuxg,stic acirl ara
formed f-rom M."A.- B. Kaplan
C,

_;hkvor*Ak Deputy Ch&Lraen Of she ~rganlz.ti.n Co.-
p;
o
j4
IIIU ke Ad .1.1*v Congress. Cwreapondna
IW.b- of the AS mil
1111. Mondoloy- Cc=_-m# of ~qnsral And Applied Ch=lstry
(TIII. Mandoloy.vasty s-yeid po obahchey I rrtk'4:lnoy khiaik)
)MONCAL: Kh1XiChQ.k&y% prOmystlonnoW, 1959, Sr 4, P; 1-10 (USSR)
ABSTRACT z Pro. Ur.h 16 to 25, 1959, In* eighth tralillonal congream
at - Russian ch-Lots took place in Moscov . The congrov.
Us. organized by %~i. of Sciences Of the US38. bj th.
To.soyutnoya khiatch..k.y. b.hoh-tvO tmomi D.
(All-Union Chemica_1 Society inani D. 1. 11--sloyev , z1ho
Go..diar
!'.nw Im.11.1 Sqv.%. 33!a p0 klilmil (01.%.
:
Cddadjj% f the CamutaLl of Ministers Of the CZSfi of
and by the Xint.t.rst,o ly-hodo S2SH Ulntlry
f Highor Bdu..%L- or the

,i. L'W-..
-I., ..a 1. %h first pl nary
,;
of the Of t1-
4
Card 216 I f of it'. USS11 or __..i.Iry V.3.
b:
I=,, gilqn 41b~% the sProbl-.0 of Scientific Technical
of the Cbo=ical Industry" and by the kc&d4=ici&n
an -Fund-tal Probleza of the POllmer
Ch. ty.. A It, 1.0tri maa%~ma. Us fllovLnZ com%ributions
glV.n. -. 5-f-Y-A-1 Thoi Periodic
"
11 .... I. of D. I. 16.dd.l.y.- and Qrg-lo Ch-al.try..
jb
:
-
rund .... t.1 Pr.bl... . f Ch-l'.1
jan
;
'
"'*1149. . AoAdcwl=U= J~ _ state of the
,arz.did Syst4a of D. 1. AZ.4._-L.%dh A- P.
a - * of U.41-h-iotry...
A&Lciwi V. A. r4% - 'Fund... Alead of
.1,7 '_ -kgj~ Probl...

', A'A-
1'y
1'y
1'y
of Ihe AgrL-Itur. of the US"", Mr-lar f%he 11 .. kind.
A.
do,At.11.kly r

ch C'
R..e.rch
I
SAO. Iidj__ Problam. 0.1 the Ap-
p.r.1u. 1.4 ma.hLUe :zn.%ruc%taA', Carrospon4Lnd "mbtir of
a,
the AS USSR Id. X. SykL. - -Pr .... I State Of IhaProbl
of Valence- i-nd Ad7_~__'r1jaA A. P. Aj#k-n.fr.1 Ch..1c
:
AA?ec%s in she Of A%-ic En&rgY'-
Direct- of the In.11%ut.

. ofih Chinos. r..Pl..m
A
of Chalilry of 111~ A 3-ianc
0.1 the a Rr. E z: I.An %I!.
:
dnl
'1 11*1 to" '~
11*11
In 11:0
.
A d.stiOt" - '3-P~-tL an
;
1111t Silver Nitrate'. A-4--i-ion,

"Irate
CIU.
l
of she V.hy r.4L.A or %'is 'Y.
Structur. -1
In do iIia, th:
n
.
! &^
y
.:. ofd14.top.-
A
~:
,
I%".d. b
Hu. ~i' 'h society
C.A Chro zr.r.

t
'
'1hy
=
T
t
T Witt,
.i
.f 14. L.Aj.n U.t,
0 d, ITIVI

A
Rasped, I. Witrog.. and 0. Alt. P. "r**"* I Af %h.
"go :'

Card 4/6
-
At.
Society "! prof... IOxfrd 1: il -Th
T_.I &ff*Q%.L- R--OtL "' A'Ilon of Illydraeun Is-
1. 3-1 %ur. 1. L..Lzgrd -A t~,.
...
,
o
g
me %J. 1, . .. ,
.,O 4 II.A.ttca of %no Nitro A r a16
-d~. ~
p

Study of the structure of i?prganic compounds with
the help of radioactive isotopes.-Il IV. A radio-chromato-
graphic study of the conden n of Na.WO. by IINOj.
1~. 10 ud 0, Marc,2- Acad. rep. populare Romine,
-kiFW Zu ~sscerceMdri chim. 10, 17-26(1059); cf.'
C.A. 53, 21073f.-HsWO, (or Na#WO,) in HIO soln. is
cr,ndensed by strong acids to the Iscipoly acid ions (HW.-
(61.aq.)6- (hexatungstate) and MW.Ou.aq.)--- (1)
(parAttingstate). The degree of condensation of NaiW04
in relation to pH, conen., temp., and time is detd. An
ascending paper chromatographic method with WIN as
a radioactive indicator is used. A satd. NaCl soln. is used
because it permits the migration of the uncondensed ions,
whereas the condensed ions remain at the start. The radio-
activity is measured with a Geiger-Midler type MST-17
counter every 0.5 cm. Wong tile chromatographic strip
and the percent condensation is detd. It appears that pH, -
concti., temp., and time are important factors in the fornia-
tion. of isopoly compds. The chromatographic strips are
~q- developed
soln. of KSCN and SnCli.. Perfect.

agreetment betiveen these and the previous roilits iS ob-
served: Previous investigations, the methods used, and
the conclusions are given. 28 references. V. A radio-
chromatographic study of the behavior of sodium para-
tungstate prepared in warm solutions. R. Ripan, G.
Marcu, and Ibid. 27--30.-A radio-Onoinato-
V_ Nea
"
Mat freshly prepd. NabllWjOnaq.
graphic study A01
(1) soln. decomps. on heating: 3Na&H%VsO2jaq. ~ ON'ar
NVIO~ + NaaHjWiQo.aq. (~--mctatungstate). I was prepd.
by acidifying N NatWO& with N HCt at 70* using litmus
as indicator. A said. aq. soln. of recrystd. I ivas studied
chrorhatographically by the technique described in part
IV. Pyrotungstate migrates to the upper part (if the paper
and ~-mctatungstatc remains in the lower part. Chroma-
tography (if I prepd. from Nal%VO4 contg. Win shows twice
as much W" in the upper part of the paper as in the lower,
!
Results are similar to those of Knorre [J
prakt
ortion
.
.
.
p
Chem. 27, 49(1M)1 but differ from those of SouchrLY (C.A
46, 0450f) and of junder and Kraerke (C-4.46, 3440D.

4~

Distr: 4E3b
The cobalt (Ul)-amine derivatives of periodic acid. 1.
The monoacidopentrumnine -cobalt (111) - periodates.
RjMWandCs.V4rhclyi, Arad. rep. popislarc Romine, Fidt;
10, 43-60(1050).-The synthL-
st.4'anal es, ail d c1sem. propv~-l jes oft he following new &
Plex f8eriod ites are given: [CO(NI12) Cl IffI101.2110MO:
Co
CoNU,,Br)lJ:'lO1.1f2O, [CO(MlIhNol Iff, too Miro, [Co-
(1j1fj)jNOjI(J0j)~, jCo(Nrll')'N0'Iflal0#-lJa0, (Co(NH0r
SCNIH,10,.211,.O. ICc, (N1f,)sff COO 1(104)2. The conipcis.
were prepd. by treating a sot. salt. of the complex with H&10j
in dil. HSO.. 17 references. 11. The diacido-tetranunine-
cobalt(M) periodates. Ibid. 51-7-The synthesis, prop-,
erties, and analyses of the following compits. Eire given.,
frans- jCo(en)zCl2 1104, cis- (03(en)~011104, trant-jCo(en)iFjj-
NH3N (di-
inethylglyoxime) 110., cis- LCo(N11j),(N0j)zjf0j 2H.0, trans-
jC0(Nlf;)1(N02)2jl0._2H,O. The compds. were p Lepd
jd
by the same method as that used in part I of this ri__
't.
A. Gott

~ij 05
Department. of In,:,-n--,.,n,,! ()f f,ll,l cX Che~rlstry of
the illimani!m Aca,;omy i Stl`

Distr... 4E2b (e
-If h from the com-
~tudies of the structure of inorganic compounds with range,0.0-00. e acids are synt esized
radioactive isotooes. VI. Studies of the stability of phos- ponents in soln., the stability In. the range 0.0-2.5 for
T 0 gs c acid (P: 12 and o sWcotungstic; acid (Si:- 'P: IZW or 0.0-5.5 for Si: I2W is slightly lower.- VIL The
by an electroradioc
omatographic method. _JL-exchange of isotopes between tungstates and polytungstates.
i nd Gh. Maren. A . rep. populare Rombie, Fil-sala-TEd. 209-M-The relations between taugstates and poly-
UJI udis -cercddri chim. 10, 201 1959); cf. CA S4. tungstates, wrere studied with an electroradiochromatograpbic 7-~
.4231c-Polyttingstates were studied by paper chromatogra-method. The rate of exchange of W isotopes between phos-
pity in an electrolytic soln. with the aid of radioactive iso. i photungstic acid (P: 12W), silicotungstic acid (Si: 12W),
The condensed mots. were distinguished from the'and metatungstic acid on the one hand and Na. tungstate
topes
simple forms by using Wl", and the degree of condensation: 5oins. which had been -acidified to pH I with HCI on the
of Na tungstate under the effect of HNO, was detd. In de. other hand was detd. . A method was found for sepg. the
pendence on pH, concu., temp., and time. The method 1sopoly from the haeropoly acids of W at pH 1 in the pres-
-involves sepn. of the components by utilizing their various ence of oxallc acid. It is thought that the heteropolyncids
Jec. field, using form supercomplex compds. with the isopoly acids and that
:rates of migration under Uic miluence of an e
as a carrier a 5pccial filter ityr which was soaked with an'these do not m1grate on the paper strip, but remain at the
,xz
d s
'.electrolyte. The cells trips of Whatman No. . I startIng , point., . The exchange -of - isotopes takes place
paper 20 X 2 ctn. which was soaked with &V NaCl soln. rapidly. with phosfhotungstic acid, slowly with.sillcotungstic
The mixt. was applied 40 min. from the neg. pole with a acid,'and not at'a I with metatungatic acid in the presence of
micropipet and for I hr. a current of 0.4 ma. was passed at oxalic acid at pH 1, even after 214 lim., The rate of isotopic j.
L 3.5 v./cin. ,After drying, the chromatogram. was developed, ex cliang e depends on the.stability of the'comp&. If the---',"
It
isepd. into sectors, and Vie radioactivity detd. the rate of exchangeiismall,and vie
rrJ3 fGUnd - CO-pd, is stable, eversa.,
that phosphotun;,itic acid (P.12W) is stable In the: pH /7
ranr,e O.".0-nnd sillicottingstic add (SI, 122W) la.th
Ae
~7

5(4) S011/78-4-6-14/44
AUTHORS: Ripan, R., Liteanu, S., Popesku, R.
TITLE: Cryometric Investigation of the Neutralization of Silicon-
12-tungstic- and Silicon-12-molybdic Acid With Sodium Hydroxide
in 11,11elted Na
0 (Y-riometri-cheskoye issledovaniye ney-
so
' 10H
2
2
4
tralizataii kremne-12-vollframovoy i kremne-12-molibdenovoy
kislot yedkim natrom v rasplavlonriom Na 2s0 4' 101120)
PERIODICAL: 911hurnal neorganicheskoy khimii, 1959, Vol 4, I'Tr 61 PP 1300-1304
(USSR)
ABSTRACT: Silicon-12-tungstic- and silicon-12-molybdic acid were inves-
tigated with 10 n NaOll in melted '-'a
SO
. I Oil20. Three samples
2
4
of sil-icon-12-tungstic acid (Merck-preparations), one sample
of silicon-12-molybdic acid (lAerck-preparation), and one sample
of si-lico-i-12-raolybdic acid produced according to the method
of Ye. A. !Tikitina (Ref is) wer; investigated. The behavior
of the silicon-12-molybdic acid aad t1hat of the silicon-12-
tungatic aciJ in soda lye is almost eliual. The cryometric
curves show four breaks which correspond to the consumption
of 4, 8, 16, and 28 mols 11raOff to one mol heteropoly acid.
The consumption of 4 mols '~TaOH cor--esponds to the neutraliza-
Card 1/2 tion of t"he heteropoly acid. A consumption of 8 mols NaOH

SOV/72-~4-6-14/44
Cryorietric Investigat ion of the 'ieu tralizatf on of Sl' 1L.Lcon-7 2- tungstic- and
Silicon- 1 2-molybdic AciAl 71ith Sodium Hydroxide in 11.1elted Na 2so 4' 10H 2 0
leads to the decomposition of the heteropoly acid anion in
6rlalf',V207+Ila 21`19Sio 4) 6)Nalfflo 20 7+N1 a2if2 SiO4. respectively. The
results of the neutralization of 'lie silicon--12-molybdic- and
silicon-12-tun.-stic acid by soda 1ye in Ila 2S0 4-melts are given
in tables 1 and 3. The decomposition of the heteropoly acid
Into 1211aHWO +Na Sio or 12NaH?Ao0 -
4 4 4 ,.Ila4SiO 4 occurs in the case
of a consumption of 716 nols NaOlf. in the case of a consumption
of 28 mols NaO111 the lleteropol.%r ac.].,i lecotiposes into
12P,'a 11110 +171a Sio or 12',1a 1100 +Ta?Si0 resijectivel,~, There
2 4 4 41 2 4 _r 4
are 11 fi6ures. 3 tables. and I" r-fex-ences, 2 of which are Soviet.
ASSOCIATION: Universitet imeni Viktora 'Babesha Kafedra neor-aniclieskoy i
J, U
analiticheskay khimii,Rumyniya (University imeni Viktor Babesh -
Chair of Inorganic anil Analytical Chemistry of R=3ania)
t.
SUBMITTED: flovember 25, 1958
Card 2/2

RIPAN, Raluca, acad.; CALU, C.
A physicochemical study o; the aqueous solutions of the metatungstic
acid. Studii cere chimie Iluj 10 no.2:217-226 159. (EM 9:9)
1. Universitatea "V. Babes" - Cluj, Catedra de chimie anorganica
si analitica.
(Solutions) (Water) (Tungstic acids)

S 10-51, /62 "GOO/005 025,11, 112
.5 1 C, i
?,:-,Z, uaDfiela,
-2-- deter:-,inazion of hc:xavalent uranium
I L abs~racz
v n~'- Xhimiya, no. 5, 11-~62,
S t u I,- IZ;~ ci-,i,-. !-cad. -R2R FJI. Cluj, v. 11
no. 2, 11~---SO, 259-2!S6)
0+
etr4c method for the deterrdnat-on of U i n the .-"or:n
s:)ectropnotom
C-f an oran--e-coiorecl -i.,iL*,,,, salicylaidoxime (I) (moiar ra .4 0 L;
Col or 4 Si -
'2'-e optimum, pH is S.cO-c4.j0. The y
U
C~ezi worked nten
incrc-~ses t`e concentra-tion of i is increased up to a 20-fold e cess,
b w durinj 20 min remains
stable. The color develops
stable for as lon- az a day. 1-Lc--,ht absorption of the com7plex
4-S -'0C. M11; at t'-4 'enc the rea~;ent absorbs a considera .0-:e
~;Lmount of 1;--I-,t 3oe-'s !a,.,i is satisfied a-z a U concentration of
I- . -
/:7.1 and at -'00 a'so a- conct.,,-rations of 10-60 'mi and -If:O :i,,
but the sensit-vity of -he
1 .,.-av;- len--t',, i do,.s -o* absorb
z e :-~::i nat on r, --* s so M& t I ow e r 5 ml of freshly prE.Dared
Card

,
z ~ i~ - , : , z~
!C) 2 /0 C 0 /'G 0 2
7; r -
o t r --' z: . . .
'a- C e S S a nd. -U'Zlcn 0--
S,
7 Of 0 - 0 5)
'tc c"ns,~zre i~; arr-- added Lc neu-.---a.-: or a
0 f U, -U). ilhe mixture is diluted -.-vith -.,-Lter -.0
SDI
at C 0 analo,--ous sclu-on
-,U ' n - U~
Les
iIst ao
e
So -looo, c-, zoOO. F- a
u c D n. r, 1C)
1 v~ a
0 -2-, ~00. re t':-.a ren-ent a r s
i n a t e r -a z; 80
0 f e t'-. a.. Kept war...
c 3 '-00 ml and fi Izerad.
t C', u L s t r r i n a
ncte: C cm a t e a n s 1 a t o
2

it! P AN' I Ffri I ~, -I q j E(,F. it. I ~ ; 12(). T Af i , N,
,-- -- - t ' 3 1 - r, at I -;:-. ~~ :.~r a r1l" "um 'ar I,! ac -- ome a ny _i n g
, .-, , . - . - -)u - ~-,--q T~-,: -he rie ~le- rr ~
e iernei-,'-.3. P". I. Stud-J JL cero 1--- no~ !I-. . R'3 -8 7 :; 1c4;.
I. tu--, (,'- ChefrllstrY Of 'h6 Hwur;,~nian Academy. clu.1 Brann
L L L
,~;:4 -"I'll Dcra-n fltzeet.

:,,"-AN, m.; .
I
- :- ~ a I -ir , -9 r- 1 ; 1 tl o 3 ~'ev
_:~ EC.,~ n 4n;,15
,Iontr,L--'Utions - - -- - -..- - I. ~ ~ - c, -rin-c- n . - ,
chimie Min petr 15 no.11:684-685 N 6z..

RIPAN~ JjqjUCjj p actid.; VARHE~LYI, Ga.; URMOSI, J.
New amine dimethylglyozym-a rlea of cobalt (!IT'. Ft.g. Slildfl.
cerc chimie CluJ 14 no.2:215-226 163.
1. :h~r C-F ~7norgvaruc and- Ana'117-~41,:!al
...?~~ 'l-,i: ,

2
.-41 11,al- ca Pa -cu :.:areu 3.
c mnethod for the det-_--=,_.4nm;J,on of
- - - - - - T al. X* :r.' --a, no. 42.
t; r c t~ r c A c F H F 4~ 1 C u
2, ly!.~U, 2 2 '1
::.et-,od (published earlier) for the deterrmination of Te b:
~i t c t e I e:- e nt a r,' s t: It e 4 t;~
61110SeMlCarDazide k'!) in an Hc!
been, e_zpI'e4 -o a Era-v4ma-.r`c
e d i u.-. R ZI-S h i m, n 0 - 7 9 , 2 0 0 1
t w_-- r::-, 11 t _4 0 n S e S . 1:11 o f 7 IICI are addc-d to 20 ml of ~I-e
zciu~ , 2 3 the mixture is heated to
,.Orl to IbL analyze(i (apor. 0.2 g Na Seo
"n-.Foc + 69 ml
11 79 -11 of the precipitating solution (10 ml 1 7G L 0
e r heated to the SaMe ~;emperature, are then added, drop b.-, drop
t
a
conszant stirrin'g. The precipizate is filtered -.hrouE;h a 6 lass filter G,,
voith .vater, etharo- and ether, dried in a vacuum desiccator for 'T
u
min, ard vieiChed. Tln,~ time ne,~ded for the determination is 25-30 min;
Card 1/2

.A. new -;,av-,mc-zrlc mei;:,od ~or
the error 4-1 s -! 0. 42 ~-he se.-,sjt-;vjvr
r-u, Cu, Bi Jirterfere
solut4cr- Te, L 1
no-ue: ComPlete tr-,nsla-Z or..;
3/08~/62/000/005/0310/1 12
B149 3101
of the deter..-.,~naz4on s 7 Se in
6
virith the analysis. ~L,-szrac-erls

A I 25/A--26
AtM1011. N.b. 41-1
TI-LX, ~r th, ch-l.1 I.p"t'y
MRIODICA.I., A.,t.U 1. ChI.I., 1960. V.I. It, N, 5. pp. 2-fj N2
TV=._ th, -tt., - ..tZ 1~ P--h
h.14 7 - 6, 1,-M by :,I it - c-'.
(ch-1-1 3--ti.. - 1,.1 .1 Dr. 11. !r r t
P-111-t Ir ul. ~111 L;-i-7---,
-It
Rip -5- CMIUM: -7
C-blll~tl~n. by I.. Ml~!,,--, - I A. 1
P.
tq
If!
C."i 11*2
:"%-try t,- --H; "A
tli~
,7
tt.
A 7
A !,1- 1
te f P A
Lc cb-'..try r ty -1
T. .-rtA Pg, tn,
th. S--Jj f th~ ".it K-K.14- 7----
1-t. .. El.-t Ag,-.t, In C,M.rll~ F-01114-" by Is
bf th. F.--h 17,
-I.try- bi
ytLi 1.1-
by ri,- T-H 1.
C-I a, 2

Given IN, -5
Rumania
Academician
Bucharest Co-runicarile Academ.~ei Renublic~i Romin"A
NO 4) 19615P 409-414-
A N ww Rad ochqmical Method for the Qum titative Determination
Of Massfum.
Co-authors:
MARCU , Gheorghe . Academician
03SMA, Minerva, Academician.

RIPAN R.., acad.; DUG A - MAGE , A.
J, 'A, ., R
Paper-chromatographic studies on the behavior of the hydrogen ions of
silieovolframic acids. Rev chimie 6 no.1:51-56 '61.
1. Institut fur Chemie, Cluj, Akademie der Rumanischen Volkarepublik.
2. Membre du Comite de redaction "Revue de chimie" (for Ripan).

V.;
Cryome-tric neutr,-~l-Jz--.Aion oV -12-,"',osplar-olybdic acid and 12-phosp"c-
tun-ztic acaLL- Tith' -oddum hrd--o:Ade. Zhur. neor-. 6 r-o.1:24--'
21,9 161.
1. Kllu-.,-tsl-.iy universitet L.-. V.3a-bes".1-Bolyty. Khin i rhoskiy tet,
'-af&ira necrg---uc-!.eskoy i analiticl-teskoy khimii. (ftum-jnski,-,:. -arodnayn
i Le s pai bl i la~
( pT I
--SUC acid)
'10 J)"
u-olyblic acid) (PI.Or'll-otun,
(Sodlilr~ llyd~.Oxidc)

FLIFAE, R.; LITLAIJU, K.; 11:10, V.
Cryometric neutralization of metatunGstic acid and 12-borottm!-stic
acid with sodium hydroxide. Zhu--. neorg. klik:.. 6 no.1:249-25i 161.
0 (',qP-k 14:2)
1. KluzEskiy universitat ii~.. Dabesh-l'olyay. Kh:b,icheskiy fak-u-11tet,
kafedra ne organic! eskoy i -n-ql-,Lticheslr-oy Ichi.,ili (-i-i4jr-yanska-ya Karodnayr-
Respublika).
(Tungstic acid) (Tungstoboric acid)
(Sodium hydroxide)

L -~)-16'e6-66 P (j ) p~,
ACC NR. Ap60-26-1-71 SOURCE CODE: -GE/OO6
3/65/341/01-/0103/0110
AUTHOR: Ripan, R.; Varhelyi, C.; Nyeso, A..
ORG: Department of Chemistry, Babes-Bolyai University, Cluj, Rumania
TITIE: New cobalt (III) chelate compounds with ethylenediimino-bis-acetylacetone
SOURCE: Zeitschrift fur anorganische und allgemeine Chemie, v. 341, no. 1-2. 1965,
103-110
TOPIC TAGS: cobalt compound, chelate compound, acetone, Schiff base, molecular
structure, chemical decomposition, IR spectroscopy, UV spectroscopy
ABSTRACT: Twenty-two new cobalt(iII) ammine complexeslof as yet unknown
types [Go ec(P-picoline)2]X and [Co ec (-~-picoline)-2]X (where'ec stands for
the coordinated Schiff base athylenediimino-bis-ace tylacetono have been
no
obtained by double decomposition of [Co ec(P-Pic0li 1)2]C1 and Cco ec( pioo-:
lino) 3Cl. X represents I. NCS, BF4, C104, picrate, 2Cr2O 1/2S506
Lfi) (NCS)21, (Cr(M13)2(=)41, [Co(NH
3)2(N02)41, l/3[Cr?'1CS)61, 1b
ROR02t
Co, From spectroseopioal investigations in the UV and IR regions
some structural problems were resolved and discussed. Orig. art. has: 4 figures.
1JPRS; 34)6691
SUB CODE: 07, 20 / SUBM DATE: 05Apr65 / OTH REF: 012
Card 1/11-00

L ooo92-66 E1,JP(t)/E1-1P(b) DIAA-P/IJF(c) JD/JG
A=991UM: AP-9025537 Woo27/65/010/001/0155/016511
AUTHOR: Pascu, Ripan, R.-(Academician ARPR); Buturca, Fe
TITLE: Determination with the aid of radioagliye 8--af the crushin
9
flotation time of auriferous mi ls at Rosia Montana, the distribution off gold i
the crushed mass and the gold losses in the final sterile
SOURCE: Studii si cercetari de metalurgie, v, 10, no. 1, 1965, 155-165
TOPIC TAGS: radioisotope,_Sold, mining engineering, radiometr7
ABSTRACT: The authors used radioactive gold to mark the technological flux in
the ore-processing plant and determined radiometkical.Ly the following parameters:
grinding time, speed of movewnt through the mill and the crusher, flotation time
distribution of gold In the agitation mass, and gold losses In the final sterile*
Orig. art, has: 1 figure, 1-formala, 13 graphs,
ASSOCIATION: Institutul do chimie, Academia Re P# Re, Cluj (Institute of Chendst i17
RPR Acadeny)
SUBMITTEDi 07Dea64 ENCL: 00 SUB CODEt GO, NP
NR REF SOV: 000 OTHER: OCA ims
I. A,
Card 1/1 1

P N'
v i S L, m e r S : t, ).-I i n cobaltil-,
r-er.-- 14
1. Cl~alr of A:VtlLvtl,- a nd In urgl- In i,-- Cher as ry a bt-, --Bc, I yal
; I i-i 7. 'i ~.--S If -,y , "' I I !.-I .

RIPAN fin -IU:;,i, tutivj,, E'6ER, 1- ~,IIREL, C~
Cor * ribut i or.:3 t(,; the s, u ~y of the propert i es of sc ! salts
of 0~~)-diflthyl ester -- d1thiophosphoric acid. Fbr7~1-2.
Stud-~'i cer(- c~,Ilmle Cluj 14 no.1:49-60 '63.
1~ ir3tltiite of Cj,,emlstry, I'lumanian Academy, C11--ij Branch.

:31-37

U T11,
7

RIPAN, R., a-Ad; IIKkGIJ, V.
Ph~icochemical study or isodium paramolybda-be. Pt.l. S-bidia
Uriiv B-B S Chem 8 no.1279-85 163
1. Lhiiversity, Cluj.

RIPIVI, haluaa, acad,.; VAIUIELYI, Ca.; SIMON, 1.
Nev isomers of position in cobalti2 dimethylg1larywates. Pt.2.
Studia Uhiv B-H-S Chem 8 no.1t123-130 163
1. "9abes-Blyai"'Universityp Cluj.

RIPAN, Ralucaj aca,41;; TOOT-RITT, Tz
Fnysicochemica7 s-,u'-~y of the class of wolfram and cobalt
heteropolycombtnations. '21tudift cerc chimie GIuJ 14 zno.l:
9-116 163.
1. Ins~.Ita,e of Chemistry, Rumanian Academy, Cluj Branch.

!t - 1, -
Ri?AN, ii5luca, acqd.- x'
(--~~ntzritDatlcns t-~ ~,.-Ie st-uay of zinc thiceyan;Unines -~;:.,Ih py---'dine.
. _ -17-30 " 71
3 tll,~ 4 4 --rc C._,IM4 , - 1.,. "
- -- - 14 no.!.
1. institute of R',ffnarilam Acadfunily, Cluj Branch~

7, i - a
_TpgI, mA 11, C , Mar ----
, i I . ?
of ~E-traijalen+ lall-arium In meal~;L Ol h-
- - . I ,m - d c ~ - -
acid, Studil cerc chim-La ',Iuj 14 no.1:41-47 1611.
1, lnzti~,fte of Chomlst.try, Riumanlan Academy, Clud Brar,~-h.

R:FANP li~, ICHEL, C~
Contributions n3garding the properties of aeome salts of the
090-d'ethyl ester. of the dithicphosphoric acid. Pt.4.
Studii cerc chim 13 no.10t609-6i8 0 164.
-1 Of Tncrg&n4.s- Cherrdstry, Institute of Chemistry
I - u
of tn-3 Rumanian Acada:~r, Cluj, 59-65 Do-nath Street.

ARHELY1^ L
RIPAN, Raluca acad.; Cs. ; HAMBURG, ErJ ca
On the A' -dioxymates of transitional metals. Pt. 12. StUdiii
cerc chimie Cluj 14 no.2:227-241 '63.
1. Chair of Inorganic and Anvlyticai Chemistry, "Babes-Balyaill
University, Cluj, and the Institute of Chemistry, Rumanian
Academy, Cluj Branch.

RIPAN, Ralucal acad. prof.
r1nmian Scientifiz Session of Chenlistru of the Higher Muca-
tion Teaching Staff. Studia Uriv B-B S. Ghem 8 no.ltl3-.15 f63

RIPAN, Raluca, aced. ; MARCU, Gheorghe; TC14US, Minerva
Study on the formation of the t6rabasic salts of siliqc)--12-
wolframi acid and substitution of the metallic ions by the
.;g
aid of 44Na, 4-K, 134cs, and llOAg radioisotope,%. Studia Unir
B-B S Chem 8 no.lz87-91 163
Study of the decomposition of the silico-12-wolframic acid
by the radiochromatographic method. lbid..93--95
1. "'B,,Is-Bolyai* University, Gluj.

RIPP21, R., acad.; STMIISLAV, C.
Behavior of metallic polyphosphates in the presence of ion
exchangers. Pt.l. Studia Univ- B-EF S Chem 8 no.19131-137 163
16 "'Babes-BDlyail University, Cluj. I
I

RIPAINI, Ralucal acad.; GADJ, N.
Polarograpliic study on the formation of silico-12 molybdia
acid. Studia Univ B-B- S Chem 8 rio-1:501--502 163-
Polarographic study on the formation of poosphr.,-12 molybdic
acid. lbid.003
1. 'Babea-lblyail University, Gluj.

ci I P A 14 R acad, ; VA!i!!':!.Yi , Gs.
y I I
Pie w c r t a ' ' I '- - 4
, - with ortho-
dian-isia.'re IIXI'~ :1--udlla- Urtv B--~: Ss ~--hem 9 no, '~7-12
164~

RIPAN, R., al~ad'.; VAhHELYI, Gs.;DDW.I, B.
New (4 -rne, tnyj tlyoxima tea "bait-( lli)-arninps (11). STudj.a Un-'Iv
B-h -. C~em 7 no.1:77-85 162.

Rallic-a-I DUCA Al.
in arineo-as sclu icr, o~.~he with
tungsv.~~n ann cobalt ~,Cc4and "0,
1no-11 10 Mr 164.
L fri.-ititute of Gherni,.Avy of' t.he Rumanian At-idemy, Cluj Priinch.

RIP-01, Raluca, acad. ; ~LARCU, Gbeorghe
Refining metalls loy the zoral melting Pt.l. Stadia
Univ B-B S Chem 8 no.1997-100 163

ca, acad; VARIIELTI, Co.; BOW, B.
It I PAN , Balu
-
New cobalt-(III)-amine dimethylglyoxymates with ortho-and
para-ethoxy-aniline. Studia Univ B-B S Chem 8 no.D113-121
t63
1. "Babes-Bolyai"' Universi-Ly, Cluj.

RIPAN, Raluca., DUCA, Al.
Behavior in aqueous solution of the he te-ropolycom-b-inations .rith
tungsten and cobalt (Co2+ and Co3*). Rev. chimie Roum 9 no.3:177-
189 Mr 164.
1. Institute of 'chemistry of the Rumanian Academy, Cluj Branch.

acad.; ~i
Vasiie
e rmi na L i rj!i I -ion r:~?, phaFess
. T.~ie scecc! of ciru-a, in au--,;-
ff~I-OLIS pyri.(,e. flotation by radioac~ivt. gold 1")8. Stuaia Un-;v
B-F,' S- 7rio. 1 61-69 T 62.

l,Ui-,Gli, Ghecrghe
Ys! icirl of 13
anLb ~ C, Lly r e F~
-,ie syz- and Pt~--
rao 2 a ons t..) b;r-2 of
-i; no. 3-m

RIPAN., R., acad.; PASCU, N.; TODORUTY I.
i - Determination of the circulation velocities in different phases
of the cyanide process of gold ores by means of 198 radioactive
gold, Rev min 1.4 no.9:381-383 S 163,

1-?
RIPAN, Raluca; Mf RCU, Gh.
Study of the inorganic combination structure by means of
radioactive isotopen. Pt. 11. Rev chimie 7 no. 1; 471-
479 162.
1. Membre de I'Academie de la R.P.R. (for Ripan); Chaire
de Chimie Inorganique et Analy-tique Faculte de Chinie,
Universite "Babes-Dolyaill, Cluj.

RIPAII, Raluca, acad.; PASCU, 1%; TODORUT, I.
Dete=drj-ng circulation velocity in the different phases of
gold ore dressing by the aid of 198 radioactive gold.
Rev min 14 no.122546-5.50 D163.

Ml
'-tilizatlorz ascc-D-c acJd in
L -
"ev chi~ip, :'.-2-n petr 14 n0.'11:411-412 J-1 10,
utiliz,atlf~-
L
Lultuj, cie chi:rie A o i Filiala Chij.