Sodium Hydrosulfite
Date：2022-01-06 Categories：related 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:; |
