YELLOW RAIN-ANALYSIS EVALUATION OF BLACK LIQUID

• Document Type: FOIA
• Collection: FOIA Collection
• Document Number (FOIA) /ESDN (CREST): 00037490
• Release Decision: RIFPUB
• Original Classification: U
• Document Page Count: 3
• Document Creation Date: December 28, 2022
• Document Release Date: September 26, 2017
• Case Number: F-2012-01432
• Publication Date: August 21, 1984

Approved for Release: 2015/01/05 000037490
ANALYTICAL RESEARCH DIVISION
RESEARCH DIRECTORATE '
21 August 1984
Analysis/Evaluation of Black Liquid
A shipment designated 10027 C(4), also identified with TH830513-40DL,
was received by the Analytic_al,Research Division from FSTC 3 June 1983.
The shipment consisted of a slightly viscous black liquid containerized in a
4 ounce wide mouth screw top glass jar, (fig. 1). No information was
available concerning the sample.
A vapor sample withdrawn from within the glass jar was subjected to
analysis by gas chromatography/mass spectrometry (CC/MS). One portion
of the liquid was extracted with chloroform, another portion was extracted
with 1:1 methanol:water. The solvent soluble materials were analyzed
by GC/MS, ion chromatography (IC) and thin layer chromatography (TLC).
The liquid was subjected to wet chemical analysis and pH determination.
The CC/MS analysis of the vapor associated with the liquid identified
the presence of aliphatic hydrocarbons, heptane, toluene, butyl acetate
and possibly methyl silicone. The CC/MS analysis of the chloroform -
extract was .not definitive. IC separations indicated heavy concentrations
of a salt, possibly sulfate. No separation of components was obtained
by TLC. Derivatization with negative ion chemical ionization detection
for trichothecenes was negative. The pH of the neat liquid was determined
to be less than 1, indicating a strong acid. Wet chemical methods
quantitated the sulfate present as 1.28 g/ml of the neat liquid.
Conclusion
No evidence of any known CW agent, agent degradation product or
trichothecene was detected. The high concentration of sulfates, evidence
of strong acid and the carbonaceous appearance of the liquid suggest
concentrated sulfuric acid was used to destroy an organic substance.
Only solvent and lubricant structures were identifiable from the original
substance.
Classified b : CIA
Declasisfy: OADR
Approved for Release: 2015/01/05 000037490 F. NC 4- /41.
1/05 000037490
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Approved for Release: 2015/01/05 000037490
Approved for Release: 2015/01/05 000037490
DATZ
'-P1031111 PO.
FROM: An ical Branch. Research Division, Chemical Systens Laboratory CDRDAR-CLB-R)
ANALYSIS OF (Structure or further description IF UNCLASSIFl) on reverse side):
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DRDAR-CL FORM 819. 1 Apr 79 replaces SAREA FORM 52 1 liar 75 vbich is obsolete
Approved for Release: 2015/01/05 000037490