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磷化锌是良好的杀鼠药剂之一。这里把它的有关材料简单介绍如下:一、制法——磷化锌由锌粉80份和赤磷20份放在铁坩埚内,电热至500—600℃(二小时),冷却后取出以球磨研细即成。它也可以用锌和黄磷来制造。二、性质——分子式为 Zn_3P_2,分子量为258.1。它是一种灰色或近乎黑色的粉末(有时成块状),具有强烈的、磷化合物特殊的臭气。磷化锌不溶于水,它与酸液或空气中水分接触后,能徐徐释出无色的、带有腐鱼般臭气的磷化氢气体(PH_3),这种气体具有剧毒。
Zinc phosphide is one of the good rodenticides. Here’s a brief introduction of its related materials as follows: First, the system of law - zinc phosphide from 80 parts of zinc powder and 20 parts of red phosphorus in the iron pot, electric heating to 500-600 °C (two hours), remove the cooling Grinding the ball into fine. It can also be made of zinc and yellow phosphorus. Second, nature - the molecular formula is Zn_3P_2, the molecular weight is 258.1. It is a gray or almost black powder (sometimes in chunks) with a strong odor of phosphorus compounds. Zinc phosphide is insoluble in water. When contacted with acid or air moisture, it can slowly release colorless phosphine gas (PH_3) with rotten fishy odor. This gas is highly toxic.