SODIUM METABISULFITE

CAS NO.：7757-74-6
Empirical Formula: H3NaO5S2
Molecular Weight: 170.13
MDL number: MFCD00167602
SAFETY DATA SHEET (SDS)
Update Date: 2025-12-17 09:49:20

What is SODIUM METABISULFITE?

Chemical properties

Sodium metabisulfite is a white crystalline powder. Sulfur dioxide odor. It may be considered the anhydride of 2 molecules of sodium disulfite.

Potential Exposure

Sodium metabisulfite is used as an antioxidant in pharmaceutical preparations and as a preservative in foods. People with asthma have a greater chance of having an allergic reaction with this chemical. Individuals allergic to sodium bisulfite (a food preservative found in some wine, fresh shrimp; packaged foods; and restaurant salads and potatoes) may have a severe reaction when exposed to sodium metabisulfite.

Shipping

UN1759 Corrosive solids, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, Technical Name required. UN2693 Bisulfites, inorganic, aqueous solutions, n.o.s., Hazard class: 8; Labels: 8-Corrosive material.

Incompatibilities

A strong reducing agent. Keep away from oxidizers. Mixtures with water forms a strong corrosive. Contact with acids releases toxic fumes. Heat causes decomposition. Slowly oxidized to the sulfate on exposure to air and moisture. Attacks metals

Properties of SODIUM METABISULFITE

CAS DataBase Reference

7757-74-6

Safety information for SODIUM METABISULFITE

Computed Descriptors for SODIUM METABISULFITE

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