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CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE 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.
1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt; 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt

COAs

Packings

1GBA000015
1PW1200060
Print friendly version
Article No. 02835 Grade AR/ACS
Purity 98.5% CAS No. 5808-22-0
Molecular Formula C10H6Na2O8S2.2H2O Molecular Weight 400.29
H.S. Code 2908.9990 Shelf Life 60 Months

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

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 and Hazard Symbols

Exclamation Mark
Symbol: GHS07
 Signal Word: Warning
 Hazardous Statement: H315-H319-H335
 Precaution Statement: P261-P305 + P351 + P338
Revision Date: 19-Apr-2023

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