猫的发现法国化学家库特瓦正在做一项化学实验,从海藻灰溶液中提取硝酸钾。突然跑来一只猫,把—瓶硫酸碰倒了,硫酸全都洒进了装有海藻灰容液的盆里。奇怪的事情发生了,一缕缕紫色的蒸气从盆中升起,非常美丽。库特瓦收集了一些紫色的蒸气,冷却后得到了—种紫黑色的晶体。这就是碘。碘可是个宝贝,本事可大了,好多地方都用得到它。打假英雄个别养奶牛的人为了多赚钱,往牛奶里掺米汤。这样的牛奶肉眼真还看 The discovery of cats French chemist Coteva is doing a chemical experiment to extract potassium nitrate from an algae ash solution. Suddenly a cat was run and the bottle of sulfuric acid was knocked over, and all the sulfuric acid was spilled into the pot filled with algae ash. Something strange happened. A ray of purple vapor rose from the basin. It was very beautiful. Kutva collected some purple vapors and cooled it to obtain a purple-black crystal. This is iodine. Iodine is a baby, the ability is big, and it is used in many places. Counterfeit Heroes Individuals who raise cows in order to make more money, mixed rice soup with milk. This kind of milk is still watching