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Sodium bisulfite is primarily used in the pulp and paper industry. It is used in water treatment as an oxygen scavenger agent, in the photographic industry to protect developer solutions from oxidation and (as hypo clear solution) to wash fixer (sodium thiosulfate) from film and photo-paper emulsions, in the textile industry as a bleaching, desulfurizing and dechlorinating agent and in the leather trade for the sulfitization of tanning extracts. It is used in the purification of TNT for military use. It is used in chemical manufacturing as a sulfonation and sulfomethylation agent. It is used in the production of sodium thiosulfate. It is used in other applications, including froth flotation of ores, oil recovery, food preservatives, making dyes.
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Sodium bisulfite
MSDS
Product Identification |
|
Product NameSodium bisulfite | |
Synonyms Sodium hydrogen sulfate | |
CAS7631-90-5 | |
FormulaNaHSO3 | |
Molecular Weight120.06 | |
EINECS231-548-0 | |
RTECSVZ2000000 | |
RTECS ClassAgricultural Chemical and Pesticide; Tumorigen; Mutagen | |
Merck12,8731 | |
Beilstein/Gmelin46102 (G) | |
EC Index Number016-064-00-8 | |
EC ClassHarmful; Contact with acids liberates toxic gas | |
Physical and Chemical Properties |
|
AppearanceWhite crystals. Physical properties are for pure material. | |
Solubility in water290 g/L (20 C) | |
Density2.476 g/cm3 (20 C) | |
UsagePh adjustment, fungicide, herbicide, microbiocide. | |
Vapor Density2.2 | |
Refractive Index1.43 - 1.47 | |
First Aid Measures |
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IngestionIf victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately. | |
InhalationGet medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. | |
SkinGet medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Destroy contaminated shoes. | |
EyesGet medical aid immediately. Extensive irrigation is required (at least 30 minutes). | |
Handling and Storage |
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StorageStore in a cool, dry place. Store in a tightly closed container. Do not expose to air. | |
HandlingWash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Wash clothing before reuse. Keep from contact with moist air and steam. | |