Sodium sulfite CAS 7757-83-7, anhydrous sodium sulfite
sodium sulfite
| Chinese name | sodium sulfite |
| English name | Sodium sulfite |
| Chinese alias | Sulfur powder; Sodium sulfite (anhydrous); Sodium sulfite (crude); Sodium sulfite (refined); Sodium sulfite (crystalline); Sulfur powder; Anhydrous sodium sulfite; Sulfur oxygen; |
| RN CASE | 7757-83-7 |
| EINECS number | 231-821-4 |
| molecular formula | No.2SO3 |
| molecular weight | 126.04 |
| Dangerous goods sign |  Xn:Harmful |
| Risk Terminology | R22; R36/37/38; |
| security terms | S24/25; |
| physicochemical properties | Properties, colorless monoclinic crystal. Relative density 1.561 Solubility, easily soluble in water, its aqueous solution is alkaline; insoluble in ethanol. |
| purpose | Used as man-made fiber stabilizer, fabric bleach, photographic developer, dye bleaching deoxidizer, fragrance and dye reducing agent, papermaking lignin remover, etc |
| upstream raw material | Benzene, phenol, soda ash, sulfur dioxide, ionic membrane caustic soda, sodium dithionite, sodium sulfide, sulfuric acid, caustic soda |
| downstream products | Sodium thiosulfate, cuprous chloride, cuprous cyanide, copper, selenium, 2-naphthol, sodium allyl sulfonate, sodium methacrylate sulfonate, fatty alcohol polyoxyethylene ether sulfosuccinate disodium salt, p-methylsulfonyltoluene, 1,3-dinitrobenzene, 3-nitroaniline, 1-amino-2-naphthol-4-sulfonic acid, 1-aminoanthraquinone, 1605 emulsifiable concentrate |
