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ＰＨ_３的简易制法安徽阜阳市红旗中学方子忠用Ｃａ３Ｐ２制取ＰＨ３的实验安全简便，学生容易掌握，具体做法是：一、Ｃａ３Ｐ２的制取（１）先把消石灰放在坩埚中，加盖用喷灯加强热约１０ｍｉｎ，使它分解为生石灰。（２）取红磷１～１．５ｇ放入一支１５×１５０ｍｍ?..
PH_3’s simple system method Fang Zizhong of Hongqi Middle School in Fuyang City, Anhui Province, uses Ca3P2 to obtain PH3. The experiment is safe and easy for students to master. The specific methods are as follows: 1. Preparation of Ca3P2 (1) Put slaked lime in the pot first, then cover the torch. Heat up for about 10 minutes to decompose it into quicklime. (2) take red phosphorus 1 ~ 1.5g into a 15 × 150mm?