- a white, crystalline, water-soluble, poisonous acid, H2C2O4⋅2H2O, first discovered in the juice of the wood sorrel species of oxalis and obtained by reacting carbon monoxide with sodium hydroxide or certain carbohydrates with acids or alkalis: used chiefly for bleaching, as a cleanser, and as a laboratory reagent.
- a colourless poisonous crystalline dicarboxylic acid found in many plants: used as a bleach and a cleansing agent for metals. Formula: (COOH) 2
