Oxalic acid

Honeybee coated with oxalic acid crystals

Oxalic acid is an organic compound with the formula C₂H₂O₄. It is a colorless crystalline solid that forms a colorless solution in water. Its condensed formula is HOOCCOOH, reflecting its classification as the simplest dicarboxylic acid. Its acid strength is much greater than that of acetic acid. Oxalic acid is a reducing agent and its conjugate base, known as oxalate (C
2O2−
4), is a chelating agent for metal cations. Typically, oxalic acid occurs as the dihydrate with the formula C₂H₂O₄·2H₂O. Excessive ingestion of oxalic acid or prolonged skin contact can be dangerous.

单词	Oxalic acid dihydrate
释义	Oxalic acid dihydrate 英语百科 Oxalic acid Oxalic acid is an organic compound with the formula C₂H₂O₄. It is a colorless crystalline solid that forms a colorless solution in water. Its condensed formula is HOOCCOOH, reflecting its classification as the simplest dicarboxylic acid. Its acid strength is much greater than that of acetic acid. Oxalic acid is a reducing agent and its conjugate base, known as oxalate (C 2O2− 4), is a chelating agent for metal cations. Typically, oxalic acid occurs as the dihydrate with the formula C₂H₂O₄·2H₂O. Excessive ingestion of oxalic acid or prolonged skin contact can be dangerous.
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Oxalic acid dihydrate

Oxalic acid