食品级焦亚硫酸钠

食品级焦亚硫酸钠（CAS 7681-57-4）的独立参考数据，整理自公开化学数据库。

各数据库的登记标识

计算分子描述符

在册的理化数值

在册的记载用途

CIR ingredient: Sodium MetabisulfiteSodium and potassium metabisulfite are used as antioxidants in photographic film development. [Kanerva, p. 1637] Used as an antioxidant (food preservative, pharmaceutical aid, silage preservative; [HSDB] Used in the pickling stage of leather production; [PMID 21938525]

同义词与商品名

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

已收录的法规名录

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 危害分类

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]

公开数据库对它的描述

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%.

物理形态与操作说明

跨数据库差异需要注意的地方

What are the CAS number and molecular formula of Sodium Metabisulphite Food Grade?

CAS 7681-57-4; molecular formula Na2S2O5; molecular weight — g/mol.

数据来源：公开化学数据库（PubChem / Wikidata）及所引文献。批次相关数值以随货 COA 为准。