sodium hydrosulfite
Date：2022-01-06 Categories：Related Application Product
| post date: |
jan 05,2022 |
| expiry date: |
jan 05,2023 |
| detailed description: |
cas no. :7775-14-6
specs:85%；88%；90%
synonyms: sodium dithionite; dithionous acid, disodium saltmolecular formula: na2s2o4
molecuar weight: 174.11
hazardous material composition:cas no.
appearance: white or light yellow crystalline powder-like sand.
melting point (οc):> 300 (decomposition)
ignition temperature(οc): 250
solubility: not soluble in ethanol, soluble in sodium hydroxide solution. strong reaction with water and burn.
main purpose: printing and dyeing industry, can be used as reducing agent for vat dyes, disperse dyes can be used for reduction cleaning (two-bath), reactive dyes can be used for stripping, wire, hair bleach, also used in medicine, mineral processing, sulfur the synthesis of urea and sulfur.
incompatibility: strong oxidizers, acids, flammable or combustibles.
conditions to avoid: thermal decomposition, in the air can be oxidized. |
| cas registry number: |
7775-14-6
|
| synonyms: |
;sodium dithionite hydrate;sodium hydrosulphite;sodium dithionite;disodium dithionite; |
| molecular formula: |
na2o4s2 |
| molecular weight: |
174.1071 |
| molecular structure: |
|
| hazard symbols: |
![]() xn:harmful; |
| risk codes: |
r22:;
r31:;
r7:; |
| safety description: |
s26:;
s28a:;
s43e:;
s7/8:; |
