Chromotropic Acid Disodium Salt AR Dihydrate 25 Gram

PRODUCT CODE 289725
SYNONYMS --
C.I. NO. --
CASR NO. (5808-22-0)
ATOMIC OR MOLECULAR FORMULA C10H6Na2O8S2
.2H2O
ATOMIC OR MOLECULAR WEIGHT 400.28
PROPERTIES --

PARAMETER LIMIT
Description Off white to grayish/brown coloured powder.
Solubility 5% suspension in water is Hazy and brown.
Clearity of solution Passes test.
Identification (By FTIR) Conforms.
Minimum Assay
(Acidimetric on anhydrous subs.)
98.5%
Sensitivity as reagent for formaldehyde Passes test.
Sensitivity to nitrate Passes test.

MAXIMUM LIMIT OF IMPURITY
Water (By KF) 8.5 - 9.5%