Potassium binoxalate

Description

White, slightly hygroscopic crystals. Potassium binoxalate is used as a water soluble source of oxalate for removing of rust stains and iron gall inks. It is also used as a cleaner for metals and wood, as a mordant in dyeing, and as a photographic chemical.

Synonyms and Related Terms

potassium acid oxalate; potassium hydrogen oxalate; sorrel salt; it has incorrectly been called salts of lemon

Risks

• Toxic by ingestion.
• Flinn Scientific: SDS

Physical and Chemical Properties

Soluble in water. Insoluble in ethanol. Decomposes when heated.

Composition	KHC2O4 - + H2O
CAS	127-95-7
Molecular Weight	mol. wt. = 128.13