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CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE Extra Pure
1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt; 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt
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Packings
25 g
(00025)
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Article No.
02834
Grade
Extra Pure
Purity
98%
CAS No.
5808-22-0
Molecular Formula
C
1
0
H
6
Na
2
O
8
S
2
.2H
2
O
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%
Water (H2O)
8.5 - 9.5%
Safety Information and Hazard Symbols
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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CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE