Potassium oxalate, K2C204, H20, is odorless, efforescent, water-soluble, colorless crystals that decompose when heated. Sinks in and mixes slowly with water. Used in analytical chemistry and photography, and as a bleach and oxalic acid source.
- Potassium oxalate is a white crystal or powder made by neutralizing oxalic acid with potassium carbonate. It is soluble in water 1:3 but not in alcohol. Potassium oxalate was used as an early developer for gelatin plates but is best known as the developer for platinum prints.
- Cleaning and bleaching straw, removing stains in photography; in vitro blood anticoagulant; also in analytical chemistry.
Testing chemicals required Zinc Phosphate
Indicator Solution #1 (phenolphthalein)
Testing Powder # (urea)
Testing Solution # (0.1N sodium hydroxide)
Testing Solution # (0.1N potassium permanganate)
Testing Solution # (50% sulfuric acid)
Testing Solution # (30% potassium oxalate)
|Molar Mass||166.22 g/mol|
|Melting Point||160 °C|