硫酸四氨合铜的制备及成分测定

Detecting Preparation and Combination of Copper-amino Coordination Sulphate

文章采用将CuSO4.5H2O溶于水,逐滴加入浓氨水至溶液变深蓝色,再滴加乙醇的方法制备硫酸四氨合铜(Ⅱ)晶体,并对其成分进行测定。结果表明,制备的硫酸四氨合铜(Ⅱ)中Cu2+的平均百分含量为25.60%、NH3为27.52%、SO42-为38.46%、H2O为8.42%,实验测定值与理论值基本吻合。

A new method was studied to combine copper-amino coordination sulphate in the paper.The solutions had been changed to dark blue by adding drops of concentrated ammonia after CuSO4？5H2O was dissolved in water.Then ethanol were dropped in to prepared copper-amino coordination sulphate and its components were determined.Study showed that the average percentage content of Cu2＋、NH3、SO42-and H2O was 25.60 %、27.52 %、38.46 % and 8.42 % successively.Experimentally determined values are basically consistent with the theoretical value.