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Cu（NO3）2溶液颜色为什么是绿色的

2025-04-01 09:04:22

推荐回答（1个）

回答1：

准确地说,含铜离子溶液的颜色不是我们平时看到的蓝色.真正显示蓝色的是四水合铜离子[Cu（H2O）4^2+],一种配位化合物.加上少量NO2溶于水的黄色,就会看到绿色溶液.
有时CuCl2溶液的颜色发绿是因为黄色的[CuCl4^2-]和[Cu（H2O）4^2+]两种配合离子同时存在

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