Sodium disulfite(CAS 7681-57-4):分子式 Na2O5S2、分子量 189.90 g/mol;类别 精细化学品。
| CAS号 | 7681-57-4 |
|---|---|
| 分子式 | Na2O5S2 |
| 分子量 | 189.90 g/mol |
| 类别 | Basic Chemical Raw Materials |
Sodium disulfite 是一种高附加值精细化合物,登记 CAS 号为 7681-57-4,分子式 Na2O5S2(分子量 189.90 g/mol),归属于精细化学品大类化工原料。
登记 CAS 号:7681-57-4
其分子式 Na2O5S2 由 2 个钠、5 个氧、2 个硫 组成。
别名/同义词:Sodium disulfite
所属分类:精细化学品
Sodium disulfite 的 CAS 登记号为 7681-57-4。
分子式 Na2O5S2,分子量 189.90 g/mol。
别名/同义词:Sodium disulfite。
所属分类:Basic Chemical Raw Materials。
Sodium disulfite(CAS 7681-57-4)的独立参考数据,整理自公开化学数据库。
| CAS Registry Number | 7681-57-4 |
|---|---|
| PubChem CID | 656671 |
| Molecular formula | Na2S2O5 |
| UNII (FDA) | 4VON5FNS3C |
| Molecular Weight | 190.11 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 0 |
| Exact Mass | 189.89825401 |
| Monoisotopic Mass | 189.89825401 |
| Topological Polar Surface Area | 125 |
| Heavy Atom Count | 9 |
| Solubility | 54 % (NIOSH, 2024) |
|---|---|
| Solubility | 66.7 g/100 g water at 25 °C |
| Solubility | 54% |
| Density | 2.36 g/cm³ |
| Density | 1.4 |
| Density | 1.4 @25 °C |
| LogP | -3.7 |
| Decomposition | 150 °C |
| pH | 4,0-5,5 (10 % aqueous solution) |
Sodium metabisulfite; 7681-57-4; Sodium pyrosulfite; Sodium disulfite; Disodium pyrosulfite; Natrii disulfis; Campden Tablets; Disodium metabisulfite; Natrium pyrosulfit; Natriummetabisulfit; sodium pyrosulphite; Sodium bisulfite anhydrous; Natrium metabisulfurosum; Sodium pyrosulfite (Na2S2O5); Disodium pentaoxodisulfate; 4VON5FNS3C
| Regulatory & Food Contact | FDA Substance added to food: ANTIMICROBIAL AGENT, ANTIOXIDANT, COLOR OR COLORING ADJUNCT, DOUGH STRENGTHENER, ANTIOXIDANT; FLOUR_TREATMENT_AGENT; PRESERVATIVE: Food Additives ANTIMICROBIAL AGENT, ANTIOXIDANT, COLOR OR COLORING ADJUNCT, DOUGH STRENGTHENER, FLOUR TREATING AGENT, FREEZIN JECFA ADI: 0-0.7 mg/kg bw TRS 891-JECFA 51/30 FAS 42-JECFA 51/95 |
|---|---|
| GHS notification summary | 0.4% (11 / 3060) |
| GHS notification summary | 0.4% (11 / 3060) |
|---|---|
| Reported hazard statements | H302, H318, H317, H334, H335, H402, H412, H320 |
H302: Harmful if swallowed [Warning Acute toxicity, oral]
H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
Sodium Metabisulphite Food Grade · CAS 7681-57-4 · Na2S2O5. UNII 4VON5FNS3C. Solubility: 54 % (NIOSH, 2024); Solubility: 66.7 g/100 g water at 25 °C; Solubility: 54%.
数据来源:PubChem / Wikidata;与随货 COA 不一致时以 COA 为准。
English page: Sodium disulfite