Transparent, odorless crystals. Potassium oxalate 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
oxalate of potash
- Toxic by ingestion and inhalation.
- Skin contact may cause irritation.
- Fisher Scientific: MSDS
Physical and Chemical Properties
Soluble in water. Insoluble in ethanol. Decomposes when heated to form potassium carbonate.
|Composition||K2C2O4 - H2O|
|Molecular Weight||mol. wt. = 166.22|
Resources and Citations
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7820
- Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
- Photographic chemicals: www.jetcity.com/~mrjones/chemdesc.htm