In the hydrometallurgical process of anode slime,usually oxalic acid is used as reducing agent to precipitate gold from chlorination solution owing to its good selectivity and quick reduction.

• 在阳极泥湿法处理流程中，草酸由于还原选择性好，速度快，而被许多生产厂家用作从氯化分金液中还原金。