Sodium Metabisulfite CAS 7681-57-4, Sodium Metabisulfite
Sodium metabisulfite
| Chinese name | Sodium metabisulfite |
| English name | Sodium metabisulfite |
| Chinese alias | Sodium metasulfite; dithioxy; sodium metabisulfite; sodium metasulfite; sodium metasulfite |
| RN CASE | 7681-57-4 |
| EINECS number | 231-673-0 |
| molecular formula | No.2S2O5 |
| molecular weight | 190.1065 |
| Dangerous goods sign |  Xn:Harmful |
| Risk Terminology | R22; R31; R41; |
| security terms | S26; S39; S46; |
| physicochemical properties | White or yellowish crystalline powder. Relative density 1.4 Solubility, soluble in water, aqueous solution is acidic. Soluble in glycerol, slightly soluble in ethanol. |
| purpose | Used as bleach, mordant, reducing agent, rubber coagulant, also used in organic synthesis, pharmaceuticals and fragrances |
| upstream raw material | Soda ash, sulfur |
| downstream products | Sodium dithionite, ethyl ether, 1-phenyl-3-methyl-5-pyrazolone, 1,4-catechol, 4-aminophenol, sodium benzenesulfinate, 1,3,3-trimethyl-2-methyleneindoline, bisJ acid, 1,3-dinitrobenzene, phenylhydrazine, 1,2-diazoxynaphthalene-4-sulfonic acid, 1-amino-2-naphthol-4-sulfonic acid, 1,2-diazoxy-6-nitro-4-naphthalenesulfonic acid, sodium hydroxyethylsulfonate, permethrin |
