CHROMOTROPIC ACID DISODIUM SALT
CHROMOTROPIC ACID DISODIUM SALT AR/ACS
Versatile analytical reagent for the TLC determination of the methylenedioxy group for the estimation of ethylene glycol in biological materials reagent for chromium, nitrate and titanium. Suitable for formaldehyde determination.
Short Name: CHROMOTROPIC ACID DISODIUM SALT
Synonym: 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt; 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt
Basic Details
Article No.
LG1386
Grade
AR/ACS
Purity
98.5%
CAS No.
5808-22-0
HS Code
2908.9990
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
Brown powder
Odour
Odorless
Melting point/ Freezing point [°C]
>300°C
Solubility in water [% weight]
Soluble in water
Chemical Specifications
Appearance
Grayish white to grayish brown powder
Assay (acidimetric)
Min 98.5%
Appearance of solution
Passes test
Water (by KF)
8.5 - 9.5%
Suitability (for determination of formaldehyde)
Passes test
Suitability (for determination of nitrate)
Passes test
Safety Information & Hazard Symbols
Symbol
GHS07
Signal Word
Warning
Hazardous Statement
H315-H319-H335
Precaution Statement
P261-P305 + P351 + P338