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925纯银会变黑吗

更新时间: 2020-11-10 00:00:00     

925纯银是会变黑的。银变黑的化学原理是:空气中含有硫化氢,当硫化氢接触银时,会与银化合,形成硫化银,硫化银是黑色的,因此银就变黑了。另外,雨水和我们的汗水、使用的香皂等,都可能含有硫,也会导致银制品变色。

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