| Agent Name |
Sodium hydrosulfite |
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| Alternative Name |
Sodium dithionite |
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| CAS Number |
7775-14-6 |
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| Formula |
H2-O4-S2.2Na |
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| Major Category |
Metals |
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| Synonyms |
Blankit; Blankit IN; Burmol; Disodium dithionite; Disodium hydrosulfite; Dithionous acid, disodium salt; Hydros; Hydrosulfite R Conc; Sodium dithionite; Sodium hydrosulphite; Sodium hyposulfite; Sodium sulfoxylate; V-Brite B; Vatrolite; UN1384; [ChemIDplus] |
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| Category |
Hydrosulfites |
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| Description |
White to grayish-white granular powder with a sulfur dioxide odor; [CHEMINFO MSDS] |
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| Sources/Uses |
Used to dye fibers and textiles, to strip dyes from fabrics, and to bleach sugar, soap, oils and wood pulp; Used as a chemical reagent and an oxygen scavenger in the production of synthetic rubber; [Hawley] |
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| Comments |
A skin and eye irritant; Reacts with acids and hot water to form oxides of sulfur; Inhalation of high concentrations may cause acute pneumonitis; [CHEMINFO MSDS] Reacts with water to form hydrogen sulfide and sulfur dioxide; [ERG 2008] |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
Not evaluated |
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| Adverse Effects |
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| Toxic Pneumonitis |
Yes |
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| Other Poison |
Chemical Asphyxiant |
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| Links to Other NLM Databases |
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