Nomenclature
CAS number: 127-95-7
Potassium acid oxalate; salt of sorrel; sal acetosella.
C
2HKO
4; mol wt 128.13.
C 18.75%, H 0.79%, K 30.51%, O 49.95%.
KOOCCOOH.
Description and references
Incorrectly salt of lemon. The same synonyms apply to potassium tetraoxalate.
Derivative
Monohydrate.
Properties
White, odorless crystals. Poisonous. d 2.0. Sol in 40 parts cold, 6 parts boiling water, slightly in alcohol.
pH of 0.1 molar aq soln: 2.7.Use
Removing ink stains, scouring metals, cleaning wood;
photography; as mordant in dyeing; bleaching stearic acids.