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| BGC Id: | 200175626641 | |
| CAS No: | 7631-90-5 | |
| Synonyms: | sodium acid sulfite ; fr-62 ; hydrogen sodium sulfite ; pyrosulfite ; sulfurousacid, sodium salt (1:1) ; sodium sulfite (nahso3) ; uantaxsbs ; e 222 ; sodium disulfite ; sodium hydrogen sulfite ; natriumdisulfit ; nahso3 ; hydrogen sulfite sodium ; sodium bisulfite (nahso3) ; bisulfite ; sodium bisulfite ; monosodium sulfite ; sodiumsulhydrate ; sodium acid ; sodium hydrogensulfite ; sodium bisulphite ; disulfite ; sulfurousacid, monosodium salt (8ci,9ci) ; sodiumbisulfite | |
| Molecular Formula: | HNaO3S | |
| Molecular Weight: | 104.06 | |
| EINECS: | 231-548-0 |
| Sodium bisulfite (sodium hydrogen sulfite) is a chemical compound with the chemical formula NaHSO3. Sodium bisulfite is a food additive with E number E222. This salt of bisulfite can be prepared by bubbling sulfur dioxide in a solution of sodium carbonate in water. Sodium bisulfite in contact with chlorine bleach (aqueous solution of sodium hypochlorite) will generate heat and form sodium bisulfate and sodium chloride. | |
| Appearanc | |
| Purity (NaHSO3) | 99.0%min |
| SO2 | 64-67% |
| Water insoluble | 0.03% max |
| Chloride (Cl) | 0.05% max |
| Iron (Fe) |
| Appearance | White or light yellow powder |
| NaHSO3,% | ≥ 99.00 |
| Water insoluble,% | ≤ 0.03 |
| Fe,% | ≤ 0.003 |
| As,% |
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