CHROMOTROPIC ACID DISODIUM SALT 98.5% AR

4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt

Article No C-02801
CAS No 5808-22-0
HSN Code 29089990
Purity Min. 98.5%
Grade AR
Molecular Formula C10H6Na2O8S2.2H2O
Molecular Weight 400.29
Shelf Life 5 years


MSDS

COA

Packagings

CHROMOTROPIC ACID DISODIUM SALT 98.5% AR

10 gm

CHROMOTROPIC ACID DISODIUM SALT 98.5% AR

25 gm

Specifications

Description White to brown powder
Assay Min. 98.5%
Water Max. 9.5%
Suitability for detection of formaldehyde Passes test
Solubility in water Soluble in water
Sulphated ash 35.0 to 36.0%
Sulphate (SO4) Max. 0.002%
Suitability for detection of nitrate Passes test
Melting point/Freezing point (° C) >300°C