GERMAN SECRET INK. FORMULAS USED IN PREPERATION OF. SOURCE - N.G.
Document Type:
Collection:
Document Number (FOIA) /ESDN (CREST):
CIA-RDP11X00001R000100010005-5
Release Decision:
RIFPUB
Original Classification:
C
Document Page Count:
1
Document Creation Date:
November 3, 2016
Document Release Date:
August 1, 2011
Sequence Number:
5
Case Number:
Publication Date:
July 12, 1954
Content Type:
MEMO
File:
Attachment | Size |
---|---|
CIA-RDP11X00001R000100010005-5.pdf | 45.88 KB |
Body:
Approved For Release 2011/08/03: CIA-RDP11X00001 R000100010005-5
[See Paragraph 4. Instructions of October 31, 1
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SUBJECT German Secret Ink. Formulas used=-------------------------
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ation o
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From ... -------- No. -433 -----------June I4, 8
---- Date ------------------------------..---- 1918
Replying to O. N. 1. No- ---------------------- Date ---- ---------------- ------ --., 191
The following is a copy of the formulas used preperation of
German secret ink.
I Comprime de'Pyramiden d 0,I r
ou (or) d 2 I/2 gr.
I Comprime ou de poudre d'aspirine d 0 I gr.
ou (or)
d 2 1/2 gr.
le tout doit etre melange avec 400 cros d'eau pure.
Pour faire apparaitre l'encre invisible.
Ist.
Alceol legerernent camphree 22 gr.
Eau distillee 50 gr.
Nitrate de potasso 0 gr. 50
Acide acetique 27 gr.
Tetrachlorure de carbure 20 gr.
Doit titre Bien melange et le faire appliquer dessus avec
du coton mouille.
EXEMPT from autotnaac declagafffoaffoat
per E.O. 11&62, Sec. 5(E)(2) t .J u
t I am ?z~_T, I9 J .~ ~5 1918
2nd.
Acide acetigue 100 gr.
Alceol a 90 100 gr.
Eau distillee 50 gr.
Teinture de capsiun 15 gr.
Chlorhydrade le quinine 0 gr. 50
Debit titre applique apre6 le premier bain, de la meme
rnaniere mais it Taut attendre que la premier solution
soit completment sobhe. ~?,~~
~ -- .+v.ac7 .,w.
14
CUNFIDENT1L
Approved For Release 2011/08/03: CIA-RDP11X00001 R000100010005-5