Potassium Metabisulfite, Crystal, Reagent

Molecular Formula
K2S2O5
Catalog Number
P1343
Supplier/Brand
Spectrum Chemical
CAS Number
16731-55-8

Potassium Metabisulfite, Crystal, Reagent is also known as potassium pyrosulfite and is primarily used as a chemical sterilant or antioxidant. It is chemically similar to sodium metabisulfite and considered to be a disulfite. The Reagent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured Reagent grade products meet the toughest regulatory standards for quality and purity.


Synonyms: Dipotassium Pyrosulfite ; Potassium Pyrosulfite

Shipping Information


Tariff No. 2832200000

prop65WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Storage Information

AIR SENSITIVE, HEAT SENSITIVE: Keep tightly closed in a cool place.

Certificates of Analysis

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2023