chromotropic acid disodium salt 98% extrapure

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Three dark brown bottles with red caps and Chemnovatic labels contain hydrochloric acid, nitric acid, and sulfuric acid, arranged side by side on a gray background.

Description

1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt; 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt

CAS 5808-22-0
Molecular Formula C10H6Na2O8S2.2H2O
Molecular Weight 400.29
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 Brown colored powder Assay (Acidimetric) Min 98%
Water (H2O) 8.5 – 9.5%
Dangerous Goods Information
UN Number – DG Class –
Safety Information & Hazard Symbols
Symbol GHS07
Signal Word Warning
Hazard Statement H315-H319-H335
Precaution Statement P261-P305 + P351 + P338

chromotropic acid disodium salt 98% extrapure

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SKU C00811-00025-HS Category
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