| Agent Name |
Sodium bisulfite |
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| CAS Number |
7631-90-5 |
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| Formula |
H-O3-S.Na |
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| Major Category |
Other Chemicals |
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| Synonyms |
Bisulfite de sodium [French]; Fr-62; Hydrogen sodium sulfite; Hydrogen sulfite sodium; Monosodium sulfite; Sodium acid sulfite; Sodium bisulfite (1:1); Sodium bisulfite (NaHSO3); Sodium bisulphite; Sodium hydrogen sulfite; Sodium hydrosulfite(DOT); Sodium metabisulfite; Sodium sulfite (NaHSO3); Sodium sulhydrate; Sulfurous acid, monosodium salt; Uantax SBS; [ChemIDplus] UN2693 |
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| Category |
Sulfites |
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| Description |
White crystals or powder with a slight odor of sulfur dioxide; [NIOSH] |
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| Sources/Uses |
Used as a food preservative; a disinfectant and bleach for textiles, brewing casks, dye vats, and paper making; and an additive for copper and brass plating; [HSDB] Used in photography (fixing bath); [www.ci.tucson.az.us/arthazards/medium.html] |
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| Comments |
A case of occupational asthma, confirmed by specific inhalation challenge, was reported in which a worker sprinkled dry metabisulfite on potatoes. [Malo JL, Cartier A, Desjardins A. Occupational asthma caused by dry metabisulphite. Thorax 1995 May;50(5); 585-6.] Similar cases have been reported in the wine, laundry, and lobster fishing industries. [Madsen J, Sherson D, Kjoller H, Hansen I, Rasmussen K. Occupational asthma caused by sodium disulphite in Norwegian lobster fishing. Occup Environ Med 2004;61:873-874] "Powder is irritating to eyes, nose, and throat and can irritate skin." [CAMEO] See "SULFITES." |
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| Reference Link |
Occupational asthma caused by dry metabisulphite |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
No |
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| TLV (ACGIH) |
5 mg/m3 |
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| Adverse Effects |
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| Asthma |
Yes |
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| IARC Carcinogen |
Not Classifiable |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: SODIUM BISULFITE
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