Nomenclature
CAS number: 583-52-8
Ethanedioic acid potassium salt (1:2); oxalic acid dipotassium salt.
C
2K
2O
4; mol wt 166.22.
C 14.45%, K 47.04%, O 38.50%.
K
2C
2O
4.
Properties
Occurs as the monohydrate, colorless, odorless
crystals; efflorescent in warm dry air. Poisonous. d 2.13. Loses its
water at ≈160°; when ignited is converted into carbonate without appreciable
charring. Sol in 3 parts water.Derivative
Monohydrate.
Nomenclature
CAS number: 6487-48-5
C
2K
2O
4.H
2O; mol wt 184.23.
C 13.04%, K 42.45%, O 43.42%, H 1.09%.
Use
Cleaning and bleaching straw, removing stains in
photography;
in vitro blood anticoagulant; also as reducing
agent in analytical chemistry.