CAFFEINE ANHYDOUS
SYNONYM: 1,3,7-Trimethylxanthine
FORMULA: C8H10N4O2
M. W.: 194.1926
CAS NO.: 58-08-2
GRADE: BP2000/USP25
DESCRIPTION: Silky, white
crystals or a white, crystalline powder, SLIGHTLY SOLUBLE IN WATER, ETHANOL,
ACETONE, EASILY SOLUBLE IN HOT WATER OR CHLOROFORM.
SPECIFICATIONS:
|
CHARACTERS
|
A WHITE,
CRYSTALLINE POWDER
|
|
IDENTIFICATIONS
|
POSITIVE
REACTION
|
|
ACIDITY (10ml
OF SOLUTION S CONSUMES 0.01mol/l NaOH)
|
0.2ml MAX.
|
|
APPEARANCE OF
SOLUTION
|
CLEAR,
COLORLESS
|
|
READILY
CARBONIZABLE SUBSTANCE
|
NO MORE THAN
MATCHING FLUID D
|
|
OTHER ALKALOIDS
|
NO PRECIPITATE
IS FORMED
|
|
HEAVY METALS
|
10ppm MAX.
|
|
SULPHATES
|
500ppm MAX.
|
|
CHROMATOGRAOPHIC
PURITY
|
0.1% MAX.
|
|
RELATED
SUBSTANCES
|
0.5% MAX.
|
|
ORGANIC
VOLATILE IMPURITIES
|
MEETS THE
REQUIREMENT
|
|
LOSS ON DRYING
|
0.5% MAX.
|
|
SULPHATED ASH
|
0.1% MAX.
|
|
MELTING POINT
|
235-239℃
|
|
ASSAY
|
98.5%-101.0%
|
USES:
USDED AS INCITANT
IN MEDICINE OR FOODSTUFF INDUSTRY.
PACKING: PACKED IN 25KG PAPER DRUM.
