纯银耳钉变黑怎么洗 银耳钉变黑了怎么清洗小妙招

综合百科2023-11-23 13:44:55佚名

先用洗涤剂洗净饰物表面,接着用硫代硫酸钠溶液(按100克水加入20克硫代硫酸钠配制)清洗,再用清水洗净即可。

用酒石酸1份、明矾1份和食盐10份,混 合物加热至滚沸,把首饰浸入;10分钟后取出,用水洗净再抹干。

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