你知道吗?钴的化合物——二氯化钴,俗称晴雨花,还要预报天气的好“助手”呢!因为二氯化钴的“脾气”特别古怪,天晴气爽,红日高照,空气中的水分很少时,它的颜色象晶莹的蓝宝石,闪光发亮;下雨前,气温下降,空气潮湿时,二氯化 Did you know that the cobalt compound - cobalt dichloride, commonly known as sunny rain, but also good weather forecast “helper” too! Because of the cobalt chloride cobalt “temper” is particularly weird, sunny, red sun shine , When the water in the air is very little, its color is like crystal sapphire, shiny flash; before it rains, the temperature drops, when the air is humid, dichloride