Potassium Metabisulfite

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Catalogue number:	PA 27 0023111
Chemical name:	Potassium Metabisulfite
CAS Number:	16731-55-8
Category:	miscellaneous compounds
Synonyms:	Potassium Disulfite; Potassium Pyrosulfite; Dipotassium Disulfite; Dipotassium Sisulphite; Disulfurous Acid, Dipotassium Salt; Pyrosulfurous Acid,Dipotassium Salt;
Molecular form:	K₂O₅S₂
Appearance:	White to Off-White Solid
Mol. Weight:	222.31
Storage:	2-8°C Refrigerator
Shipping Conditions:	Ambient
Applications:	Potassium metabisulfite, K2S2O5, also known as potassium pyrosulfite, is a white crystalline powder with a pungent odour. It is mainly used as an antioxidant or chemical sterilant.[1] As a disulfite, it is chemically very similar to sodium metabisulfite, with which it is sometimes used interchangeably.