THE CHEMICAL SEPARATION OF THE ELEMENTS AND ISOTOPES FORMED DURING FISSION OF URANIUM (GENERAL PART)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00039R000200010024-3
• Release Decision: RIPPUB
• Original Classification: R
• Document Page Count: 21
• Document Creation Date: December 22, 2016
• Document Release Date: April 3, 2012
• Sequence Number: 24
• Publication Date: April 18, 1952
• Content Type: REPORT

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and ~Lsatopes :E{'ormed Duri.n~ ~'issa.on_oi' U~^una
..........~...,....-~-.........,..............,...~..........~....--,-....r-?
(Gencra~. dart} ..
~~.
Otto Kahn anc~. I+'r~.tf S~rarsr~ann
cr Preussischen Akademie dcr I~~issenschs.~'ten, 191~.Z~,
Ab11~.~ d~.uxar,en d
~``Iathcmatisch-natuz~rissenscha~'tl.i.che Klasse, X10 ~-2
ctians oi' the I'~.1 sian Acaden~t~ of Sciences, ~.9~~.1,~
~'~ransa
Irathcros,tica].~-Scientific Series, 1',~0 l2
~e~^17 n: 19~~~, (Publishc,d by the Academy a~' Sciences.
Commission with the IrJalter de Crx~~.~rter Coa) e,V;
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 Declassified in Part -Sanitized Copy Approved for Release 2012/04/03 :CIA-RDP82-000398000200010024-3
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13er~.:i.n :~~'l~l.~
Pub1.:i,shed by ~Lhe ~.cademy of Sciences Linder the auspices
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:fin a ~~epor~, icNates Cancernl.ra~ ~Lhe ~;,xper:i.mP7~ta1, ~Jnrave:L:~.n~;
o.~' the ~l.enlen~cs and Atom Varia~r~ians wh.ic:h. pc~cur ~~ura.n~; the S}?l.~.tt:i.n~;
~~
of Ura~aium~~, (Q? ~~Iahn, :~i'? Stras ama~~ ar~d 1~~? !:xattc, ';l'rans? '1''rc:us~
Arad, Sciences, l,al.a.2, ti~a~th ? ~ ;~c fence Serie a Numbe~~ 3 ?) ~.~~ was shaven
by a n~Unber off' exaznp:Les how cancl.~a~sians could be drawn from the acs
ta.va.'ty curves o:C' ti1C pracl.ucts as ~~a the un:.Liryarmz~t~y ar ilaultz.plicity
off' the atom vari~~.ti.ans invalved? It was also sho~~rn tial~ether isotopes
7 ~ 1
a:f the some elements or trans.f arrilra~~iar~ ser:>Acs we:ra i.nvalvec].? 2 e
me~~hoc~ off' u.nra.vel,n~ was systernat:LCa1.ly presentecl by using; tl~e e~~
arnpl,e o:[' the nl~nleraus s~l,ron.~t].um isa~~opes -~ their t:rans~:'orma~t;ian
products and ~Lhei.r mother sul:~st~~.nres, ~~- wh~.ch occur durinM spla.t~l~:i..n~;?
r~'hc~ sirnii:'icance was po:in~Led out w:h:i.ch the chs,n~;es o:C ~rhe physical.
~roz~~~:~:t~~ and measuring; candita.ons :~'or the in~Gerpreta~tion oi' the prow
cesscs irLVOlved?
Methods f'ar the c~~emical:Ly pure procl~~.c~~~~ion o'`' the elements
were anl.y occasionall~r ref'er~^ed ~o ?
A number off: active isotopes, well. suited for i.n.dica~to~? e~~
periments, a.re present among; ti~tc i'~.ss:ion procluc~~ts, and ~~heae isaM
~t;apes are of si~;nii'icance? A ni~m:bcr off:' ~t;hese active isotopes
caru~ot be produced or have until now not been produced according
to nuclear processes. UT,he ~ are prepared ~'.rom ura.n.um :r~~ther ~~han
by the usual. methods i'rom ~cr~e same or nei~;llborin elements ? ~~'his
presents considerable advanta~;es~ 'l~her~~ore a_~t is desirable to
describe the chemical. separation of ttxc f`iss:ion products and to
e~a,mine in detail nLethoc~s o~~ producing chart"-lived isotopes ? a:E
special a.nterest are t,l~~e short lived substances, for Chef are the
suspected initial un~.ts off' the trans~`arms,~~ion series, r'or this
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C. ~ a di:~f'er .n several x^espc~~c~ts f'rorn t):le l~nowrl,
"'Gt~a0S1 lrlf~'th0~:1S uaod i1CrE~
lnethads d~ae 'to 'the necessa.'tY af' ra}~?i~d
~)rovec~ ana.lytic~-~:>r sepG,.ration b
~. ~ n ? 'the actual topic solnethin~ sho~zld e
praceaurev 13ofore tr~aL~. ~,
o . c;ra~~ion w:Lth rac>~.oac'tiVe atarn var:a.a~tions y
rrlc;ntianed concexlla.rl;a ~,he p
' ons co:l~hc~c~l,Gd over a per .od o~ ,years
Essc;rl'ti~~a.lY these; are observa,ta.
. ~? ~~titute f'or ChF:mistr;~', General :~nfiorma.tion
at ~~nc; I~a~.scr-'~~~~il.f~lel.r~l lr.~,~
` "tile SE: ~,lra,~t:].o11 af~ 1~~1~: 1^aJ.^e
~ ~'~' '~k1~3 pl:'oCeaS'l.n ().~ Lirarla.UTft, ~~
concern:_n~,
?- t11od, of analysis with several an~~l,yticGll
~;asc~s, ref crence 'LO trlc me
' nf'ormation, cancerninr; the ~:~rocess:i.n~ a.nd. measure
si;.ax'~t Cl.l.ts ~ alld 1.
"l;s is aa_ven~ Systematic descr:i.~~t~.on af' the
ln~;nt or the produc _.
-? ' -.-~~ ?~ anal clement?s a.nc~ 'their isotopes will follow
Se~Jcl:!?a'ta.011 UJ. a.11~17.~~.
later in a 5e Co I1d part o
~~,
~ ~~ ~~'~~ ~ {'~ CE EE`l"~'EEN C~.~~M:~(;f~T Alm I~.~~1~:CU!~G']:'T~E Mi~1.I~QE~
~.~Fl ~pLI~I
r ~ ~ ` d:~fi'f'erence e:~::~.st~~ between chem~.cal a.nd ra~~-o"
1~n es.>Ent~.al
~~ ~ ~:i ~~3."tian? :C11 't,he case off' the usual chelnica.l
acta..'tre methocl.s o.L .;.nvest
~, i
? ~ ~ 7? stabJ.c ea.emEn~~s are investi ~ateao to ~a
rE~acta.ons t~l.e uncrla,n~,in~,,
~. ~ _~ atoms ar molecules are ~enera~-ly necessaryr~ xn
'til:i.s c~.~1J.ianS of
' ~ld' oactive methods the atoms which transforr~ 'them
'the ca.~e of. rc a.
~; ~ ~ Ineas't~.reme~nt are measured ~by radiation poi^ticles
selves dur~.n~_, floe
? ? ~ , eb enutted. ".['111a,s t1.1e atoms which tra.nsmu'te a.n a
wn.7_ch are thF~r y
~? ~ enrfth of tir~le, not the number of thaw present, are a
r.,1Ve11 ~..
CCOx'C:~1na1~1~ the anaJ.~lsis of chemical elements
standard of proof o ~
to ancti:l.ysis o~' nornla.l chemical reactions. It is
is superior
he er;litted radiation panicl.c;s to the individual
~aass3_ble to trace t,
'
t
~, e articlesm This is made possible by tiie ~rea
atoms Gahich elrla.~ th p
::, {, ~~.th which the rada.a.tian particles a..re emitted f'rar~l
arnowl"c of ezl~,r?y
., ..' rl~ atoms, The reslaltin~; strong; :i.olliza.~tian of ~~he ~;a.s
the 1a~ ansnluiJ~. ~,
b, the articles is sti~ff'icient for the analysa.s of
'molecules struck ,,~ p
' dividual radia~tian ~~a.rta_cle in a 1r~ilson cloud chamber or a
the s.n
counter.
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? ~~ ~ ~ ~~ ~ ~ ~ ~ '' ' ~S'l:'~.~IC~1~ ~'1'~7;~N~ TI~~ C~ ~1~~;G~~i'1G ~;'1~~~~~' i'l~`~T~S
al s~,s ~s ao se~lsa.tive, wc: ask ouxse~.ves, to
~~.nce ~~he an Y
. ,.
, do t,ho a.?I,oms of the e:~emc:rlts retaa.n ?l~he',~.r speca, a.c
wha?~ cie~ree
., ,~ ~ ~llo the cl-~aractera.sta.c xear~tiaz~s eventually
chemica:L proper t.i.es?
. ~ ?~ :i.nterest~in~; 'Ga review the '~nvest~,~;a.?~~.oi~s by
,tap? :C'l~ rna;~ pz ave
a,hn wix~.ch led to 'the discovery of ~~he s~plittin~
Strassmann and ~~
af' uxarzium~
ound scvera:l. synthe~~icall,~'~-,active atam, variations
Gde
re to .r. adia.tion off' urana.um w~.th i~cu~Lrons which
dur:i.rl~ tl~e exposu
~??a.di.uin isc~topNs ~ ~ ~'ew thausarrd. moms were in-
We '~h0u~r1L 1~a C)C, ~:
? uantities of a.pL.~~?oxii~lately' ane tr~il~ ian~~arl of
volved ti~i.tih we~.hh~ ~
be~in vexy sim.~.].ar to rad~.um, served as ~~;he carrier
a dram ~ ~ar~,um,
h se minute quanti ties. ~1'he presl~med radium isotopes
a.~e,n~t ~ or t e
uite as we had aesti~ned for radium, Tie were urla'alc~
d:Ld not behave n
b f'ract~i.orial dist:Lllation despite ~~he
to separate it from barium y
- methods wrlictl had proved themselves tl~lra~z~;h
t a,c f; th.~.ni.m~~~. a~' ccancentra.ta.ons~
~1k'~~1~1-.~~`.~' :~1~C ~'la'~'~~~NS ~:I~ 7.'I~~a~; C.~S}~ Ql:~' ~a~G1~~:~>:~'A(~:~~~~:~1~f :h..,;,{:~~}'~'~',~`~'~~~
~uri.n~; tXlf; warn Ur~.th aCtiVe atom var~~.at:~.ans, exaep~t:t.ans conM
trar~r to the C~~er1~,.CFl.I ns~'ttlT'e of their c1.emc;nts ap~or;ar at times ~ In
that cs,se the inactive e~.emen~t w;i.l:l.behave under ~tr~ze (fa.ven conditions
'us~t like ~i;ire r~~lucYr ma~~e easily ar~alyLed s.ctive elements Apparent
~~
excep'tians a:L' this nature are ~'re~uen~cl;y encauritered.
I:t is known that lea.ca salts do not prec,ipit,a.te with an ex-
x:~' y for example,
cess oi' sod,iura ily~dr~aic:iciu, but da sa titirir,r~r a:mtnonia.
small. q~:tan~tities af.' f:'erric ss.li;s ~wha.ch contaz_n the lead :isotope '1'h
are ~~~recipita.ted w:i.th excess sodi..l~m l~iydraxide the .lead does not
remain in solut~ianm :C~u precipitates ~uantita,tively exaGt~-,Y w~.th
:ferric h droxa.de as in ~che prec:ipita~ta.on with ammonia. 'the small
Y
cauaritit~-es a~' lead r?re adsorbed by the ferric hyc~iroxide p:ree:ipitate,
~rdi nar,~ lead reacts i.n ~~he same manne.r~ `i'he adsorption :inay ~k~e
dc.r~u>nstr. sled. ~bY gradual addi'tian of i.na,c~~ive: lead ~to artive lead,
A method of separ~.t:i.n~ uranium ~'rorn uranium ~ depends upon
a similar pracess~ Uranium i.~ preci}?its.ted togetl~ler r~,~.th i'erric
h~ydraxide as ammonium urana~Le wa.th a,~nania, and the ammonium uranate
is b~~ou~~,ht into salutia.n again b~ treatment w~.th amrnoniura carbana.tem
one would expect, that the thorium isotope uranium ;~, ;~~rec~..pi.taLed
wit~~. iron, would again go into solution, since thorium h~draxide is
soluble in ammonium carbonate, ~~ut i~t remains adsorbed to the iron
precipits.te despite 't!~e fact that weighable c~uan.ti~ties of thorium
h~droxicle could be separated from iron in tha_s manner,
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n the other /land, unwt~a.~;hab~.e quanta.ta.es of a u;~aa.~?iuan ~.so~
Q
-- a d ~e ;;e~aaratecl Pram wei~i~a1~~~,e c~uanta.t.es off' thoriurrr ire 'uhe
.~c]pc caul, ~
~z, '~~a~e urana.urn would k~e a,cl,sor'oed by 'the :~'exra.c .l~ydraxide'
S~.1i~C~ iilarln~ a
and ~l~hc, thor:l.um woulu ~;a ~,z~rto salutian~
:f,r~ the case off' sur~'ace-rici1, ~nrar~l~raus, or ray cracrysta~~a.i.ne
... ~~:c:i.~~itra.tes ~torir vaz~iatiar-rs~ ~wrzicl~r da nat ~be:l.oi~t~ to the }a.reci~~.~
~~r ~- ~
.. ~~t ;s rrra~~ be ca.rriera aver~a 'rhr; ~~x~~ecs.pa.tatc moat ~tirex^c:;1:'orE be da.~a-
t d. E , ,I
~~ ~ vF;d artd r.e~rc:ca.r.~it?.ted :i.n ord.e:c, ,~o be ~Fau.ra..~'i.erl, `Shisi.s dame b~~
ldi n ~ in wea.~;halale clua.rr~t:~.~ta.e;~ dur:i.n~; the clis~ralv'i.r.r~~; ~~.nd repz~ECipiW
ac .. ~,,
tdtl.an the 1:'ore~.~;n e?~emerlt wh:i,ci1 car~~i,~~.m~.nn, wez~~e cilasen
instivad a' the baril~'~i chlaride, which is di~'fa.cu.ltl~1 solub1.e ~.n
strong hyd.r~ochloric acid, the surf'ace~rich ba.r~.iarn sulfate woulcA be
partl~r adsorbed. toge'thc;r Frith a number off' o~t~hcr s;~ntheticall;~ ac~~ive
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ator~I var~.at:i.on~a ~.ncl'~,~~l:i.n~ u.rrarri~ilTl a,nd ur47r~i.~r1~~~ a~. ~i'ha.s rnetr.tac~~ th~;re~
~;~u~,a.ly ,~'avorabl.e r~etha~~.s off:' sela~tira'La.on a,re a.vai,l~~.blF ~'ar
ceuiurn a.n ccsi.u.r~a 5::~~.a.co tun~;statc, ~~z?ar~Ii.urn ~.n ux~any'~,~uar~.iul~a ao~~
~t~a,te, L1.rcnn :ln. c~ircon o~~ychlora.d.e. :Cn the la.t'~cr case, however',
active; b~~,r'~i,um may no's be I~.resent w_i,1;h we:i.~;h[riale ~ut~~n.t:a.'t.es of
bn.rium, 1:n 'the strorl~:r ~Pr}rdroc}~IJ.or:i_c a.c:i.rl solu~Lia~n :f;'rom wi~Iich the
o~~,yclllo.r.de i~s preci ~itatecl the bar~.um would a:Lso ire ~~rec:i.~ita'~ed
a.s crl~.oz~ide, Active ~ir~corl as weal ~~s ac'(~ivE ~)dr:i..ltrn would be
~rCSCIlt :l.I"I '1,~~'.e ~rCCI.~:}i~Gc~~i;:l_OI'1 Ilti;~tur'~;a
Good. crys'~a!,1i.~atiorl a.bilit~y a~' tyre preca.pitates ~.s a ~re-
requisite :~'or ri/act~.ons ,yie~.dirl~; onl.v pur~N iso~Lopeae ~I:~L is not
even necess~rry tha~L the a.c~t.a..ve atom var~ia.tian wl~Iicil -~ ,~ ~Lo ~~e a~re~-
ci~~:i.ta'Lerl ~he an -i.sota~~e w:i_tl"I '~1re 7.nact:i.ve ~la;i.nc:ia..rr~ consti~i'~u~ent~
:It .s su:~~':~'icic~nt th.~~t ~~he acti_ve~ ~~~.to~rn va.ri~.ti on ~'or~~ns miJced crzystr~ls
w.t'Gh l,he b'LndJ.Il~ CU1'2s'Gi'f;I:leI1~G in the separa,~~~_on u.c~ed :t'or I~reci,E~i~-
Cation, `Z'hu s L~arium ~-s precipi~~ated w-.i'Lh Sr in strontium. nitrate,
~s wi_t'rl Tab-atann:tc ci~loride, and el.emertt y~, va:tence 6, with ~i;he
urca,rl~~l sor.~_um ace~l;ater
~'I~~ah~:~:~N~G T11~ 1J~~'i1,r.I~U1'~, WI-i~TCI~~i WAa ~xI'OSk~']~:) 'l~J ~~l~D:[A~:'_Cl~I~1, ,~'UI~t .~J~I~.Z~~S~:S
,,~-a.ctvity off' r~lo-re than 1 mil~.ion articles er rna.n~rte '
~ ~ a.n a
f'xom uranium anakes this necessary, ~.'en ~r'7,rrts of urarli.urn snow a
~~ission prod.u.cts~ ~~'he ~radiat~.on uranium ~, which ori.?;iriates
completely aeparate the urari~.~.tm in ardor to obtain individual
Arta_ficial radiation sources used. i n Germa.n~y~ arld the use of
r. odium-beryllium products as neutron soLlrces, mar; i t neces sar-~ 'Lo
result a~' urana.um ~. The yield of the
soolh:ilr4uMirf a~ 7'+.Nll ~ ~r '~ ?! 1 .a,-R9YrP'..e~~f11.,.YP;GV?~.1ti 1, s.P:~,`'!,u t.+. ii,~~dr. ,i~t ~....."i ~ ~?~ ? ~a, ,., , ,. ,.
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. , . , ~~ ~, ,~ ar~aducts ;i.s ~~~, ;~aast tha~ee ma~n.~.~~u~.as smal,~,er
a.ncl~.va.a.ua~, ~a.asa,ari 1
' ~ rie rrarrt ~~d~.L1rCl ~ 'aeryl'J.~..L1m a~, a neuron saua~cey aver/
Wlrera us~.n~, o ~
~, , ~ ~a.~o~~s a.rc active 7,n a.:r'avoral~le pas~,ta,an a~' ~~ha
w1~~en ~,rac s~,atircd neut.
?, ~ ~ nat to ob'tai.n the :~'1,S`~i an ~ax'adLacts i.n a tao 1.aw
products a.n ardc.x
~, r . ~~? a ~~ Laantita.es a~' ?..i~^rana.t~~s~i (uYa ~o savaa:~a.1 hl~ndz^ed
in~cns~.uy, ~,re~Lcr
t~~ apps) mL~tst ha gxpaae~:~ to rs,da,~+tiorl~
k~a ~
' ~ al~t,ernatiVea :~'ar pr`ocessil~~; ~l,ila urar~i.u.m iar~esen.t
~4,r:La L S
acCaa'C~~1.I7~~ ~;a ~l,l'le CiILaI'I'Li~y a~~ llrarll.~Im Gxj7aaC'd to
'i/ClCIrlSelve S ~
.ra,l lU0 ~;rc7.??t c~uarJt;idea ax' 1~rrarli1A.m were e~~pascd
ra.diata.on. J..C seve
.. ? ~ ~ur~c~rl~.tiarn Wil:>" ire ~7rese;I~.~~, :i.ra 'she 1'orrrr oa' a ni~;rat,ep
~~a ra.c~a.r~,~~.arJ, one
.. ~ ' ~~ is in,sif;Ili~':i.c,ant tisxac;tt~er ~~il~; ex~~asur~e to radii tian
C~arl5eclLtien.tl.,y a.
. ~`ai~es lace irI soli?tiar~ or :i.n the f'arrl of so1.:a.cJ.
ai' the u.rCti?a.~.um ~ ~
ur. ~,.rlium rlitr~J,te a.s cx~~~sta.i.l~-red bbl 'z~act:~ana.~i nor :rt
salt. l~, ~Lhe
. ^~.. . ~ . ;; LJ.e i'irst cr.,rs~~rll fractions a~:' ~~he ura.n7r1. raa.tr. a,te
severr,.l ~s.me ,
.. ^ ,~~ica:L1., no .f'7.,~s~.an ~;roduc~cs, ':~'hc ~,rea.ter par~~~ oi' ~~~>.e
canta:l.n ~~raG~ Y
' m7,; be rerr?o~red in ~I;his rr?a.raner, i~o~,~ever, the tata.l ouarl-
L~ra.?.ia.um ~
. ~., ., ~an.~.ur~J X rer,~a~.ns in the 1.~rea with the fissiol~ ~racaucts
cit~r a.f. a,Jzc. ux
^ SUbseauelr~, ~~~rocess.~n~; may
and must ~be separated ;gram ther,J late/. ,
,. vara.au,~ rnarlllc;rs, depcr~cl..n~, u~~an wi~;.:icra f'issi.ola prouuc~~s
r~ror,cecl ~.n
~~re ~~~r~~eferrede (Speai.al dart)
r' ?-~tl~~er-~met~Iaci.~~ i s used ~t,a abtain smca.ller r.~uant~.t~.es of
the c
~arJiuna mole rd..E~i.c~lyd ~>.'hE uran.LU~~I :i.s ex,?~osed, to radiation a.s
ur
r ~ ~ ~ ' ~~ed h Brous r?itra.te, and a.~'ter 'the expasL~s?e ~La x~acl~i a'~:~an
cry s ~~.ll..~. , y
' ~ s dissolved in ether in a reparatory funnel. 1a'ar each 10 r rGJ.ms
~. t _.
' ~ um salt lU cubic cerJtirrleter^s of ether a.re n.ecessar~r~ The
of uran~.
. ter T hale aYata.a.ned from ti??e Crystal Water. can.ta~i ns small ~uan~-
wa '~ p
' ,s a~' urarryl nitrate and practically ala. f'issiarl proc~u.cts, ~'y
La.t~.c
1 extraction. of the ether solution wa_th a srrla.ll quan-l;it~,r~ a~:'
rcpeatec
Declassified in Part -Sanitized Copy Approved for Release 2012J04/03 :CIA-RDP82-000398000200010024-3
 Declassified in Part -Sanitized Copy Approved for Release 2012/04/03 :CIA-RDP82-000398000200010024-3
w~~ter~ t]~e ~':i.sra.~.an ~aradl~ctyi.e:l.c~ can d~ .i.rn~rc~ved. f~,'ha.s also ~.n~
cx~ea aes t]~c urana.um rua.nta.ty, w]~:i.ch must a~aa.n be ~~eiaarated la.~Ge~~
'1'k~,is method perr~~,a.ts 'the se~arat:i.arl off' a~~~^o~~.rna~l;a~,y )U per~,Gi1~
u,rarra.um frcarn ~L]~e .~'i.ssion ;products, usi,r~~; :].i.ma.ted quanta.tiea of
u,ran.l.~ni, and tia:i,t]~in anl~~ a, f'e~a' mirnx~~es~ UrG~rrz.um,"~ a.s still
p~~e,~er1~~ in t~~ie #'issa_on productsa '~,1]?ar,E,e rne;thac:]s ar.~c a,v~~,i,lablc~
:~'or :~'ur~f,t~Er ~~racessin~:
(J-) 7:'he se~~ar~~t:i.on o.f' urani.tirnl Gas sodium. pyrouran.ate by
prec;ipa.tatinf the urana.,um sallit~.on wi.tr, sodi.~t:~r~ hyclro:~id.e~ The
sc~c~arat~.orr oj:' t]~re J.~7.r~;es~l:, ~~Lr~'~ a:(' t~~E sy.rrthr~tic r~l,]?,a1.~. arid. all~a.li
Ea.x~trr me~i,als frcym u;r:~aniura and. ur~a.r~.i~u~~ ~; res u:l.ts,
(2) '.!~'1?re cla.ssa:tv].n~; a~' urarriurn ~.nto uran.iura arr~rani.t~,r~r caz~-
zonate, ~~,y~ dissalvins; the ,prec:i,.pi_t~ rubidium, strara.ta.Lm, ar~c~ yttrium Pram
cesium barium, and lanthar~.uar~ is a.cnievcd by re~ula~ting tlrc ter~-
1
eratu.re selected .f'ox' adsarpt~.on~ `I'rar.isfarmation pradu.c~ts of a
p
~y rt half-life period cannot be obtained by the latter rnetl~lod,
a ~1a
beaa.u.se the pz'acessin~; of 'the adsorption agent requires several.
min.u.te s
.~ method exists f.'or obtain~:ng transformation products of
aces which have a shortlif'e. ~Shis process resul~,ed
the rare
' erierxce .with ~t~~e say-called uemanating~methoc~~~ used at the
f ram exp
' se1^ Wilhelm xnsti?tute for Chemistry. A uranium product ~.s
Yaa-
' nsuch a ~ sur~'ace~rich 'farm tha.`t it a.s m~.rked by a high
pracluced ar
'~~T,~ti(t~'~fd 14iv ,m;{5Qf t~ an~rk~r.i~,1~v}t~~tt~ t ..q
. t r., .~~6N1~,~E~lfllu'~, .~~hdbuu, ~ di , t~eti~i'h,a,~,.. ,rlv.;u,l.if~:.~.vr~,~ r r; i'`'., ? ~~~!'-
 Declassified in Part -Sanitized Copy Approved for Release 2012/04/03 :CIA-RDP82-000398000200010024-3
s~i~ate, 't'he xaxc; r,a.sea, ax~,~f,'-~rra~~~.t~~,
cmarra.ta.rr~~; aba,l~.'ty w1~ri:~.e; a.n G~ dxy~
~, ~ ...~ ~ ~ ~'~'u ac :~.n h~.~f~r ~e~~c~;r~~tafe quant~.~~~~.es
~~ ~ ~ suz'~; to xacl.t.~,~,t,prr, da,
dux :r.rl~, e~~~o
' t~ aT(:
- w ' cif ,a.lt, ~~'hc;~x ~i;xarls~'oxrna~tiur~ ~1~xoctuc
~':r~am ~,he su.x~'~~ce r~, , ~a~~,~.ve~.y oh.ax~,cc~
~xec~.7, a ~tatesn on a n~,~a
se~~aratcd. ~~,a ~,n~v:i.s'1.b;~c: '~act:r.ve ~ ~ ~ , ;, , cls,
.(
., ~ ~ .~ kre removed. by aca.d, wi.th:i.n s. ~:ew sc,c,orr
metal. p:l.ate ar :La7.~. and ma,f , .,~ a ruba.d~.u.m
,~, s:~larn a:~ LGCt seconc:l.s h~a1.~ -l~.~c, and
~~~pra.s rnethad ya.eld.cd. ce
~~~ r~0 se~~onds.
- f' the: se~axatl.on a1' xare ~aSeS acrd
~, d~;ta:i.l.cc~ r.~~.ac~c~.ss~t.orl a
oducts by ,~rG,ti~til sepi:~r~+.~L~.an a,~ t~,.c; ?ases
~the:i.x tx~.ns~'arm~a,tior~ px
' urs.rriur~i wi:l.l rla~t be entGZ1e;d into here.
.[ xora
. ~ ~ c, , ? ~-~oduc~ts which G.re eas:i,l.y d.~.st~.:tled
Z'h~; sepc r