Etchants are high consumption and high pollution of the printed circuit board industry , this research used chemical precipitation method to prepare copper trihydroxy chloride [ cucl 2.3cu ( oh ) 2 ] from wasted etching liquid containing acidic copper chloride .

在印刷电路板工业中，蚀刻液是属于高用量及高污染性质的液体，本研究使用化学沈降法由酸性氯化铜蚀刻废液中制备碱式氯化铜[cucl2.3cu(oh)2]。