Potassium Metabisulfite Properties, Molecular Formula, Applications - WorldOfChemicals

Potassium Metabisulfite Properties

Potassium Metabisulfite

Molecule Structure Image



Potassium metabisulfite is used is as an antioxidant or chemical sterilant. It is used as a food additive. It is also used in the textile industry for dyeing and cotton printing. It is a component of certain photographic developers and solutions used in photographic fixing.

Chemical Properties

Appearance White crystalline powder
CAS Number 16731-55-8 
Density 2.34 g/cm3
EINECS Number 240-795-3
InChI 1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
Melting Point 190 °C
Molar Mass 222.32 g/mol
Molecular Formula K2O5S2
NFPA 704 H-1,F-0,R-0,C-NA
Other_Cations Sodium Metabisulfite
RTECS Number TT4920000
Solubility 450 g/l
Synonyms Potassium Pyrosulfite;Dipotassium Disulfite