Tags: Chemical Compound, Chemical Substance.
Oxalic acid is an organic compound with the formula H2C2O4. It is a colorless crystalline solid that dissolves in water to give colorless solutions. It is classified as a dicarboxylic acid. In terms of acid strength it is much stronger than acetic acid. Oxalic acid is a reducing agent and its conjugate base known as oxalate (C2O42−) is a chelating agent for metal cations. Typically oxalic acid occurs as the dihydrate with the formula H2C2O4·2H2O.
