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取一园底烧瓶配以双孔胶塞,一孔插入分液漏斗,烧瓶里放入5克二氧化锰,并加入10毫升硫酸(1:1);向分液漏斗里注入12毫升无水乙醇(或13—14毫升95％乙醇)。胶塞的另一孔插一导气管,按顺序联接两个装有胶塞的试管(试管Ⅰ、Ⅱ、),分别放入两个锥形瓶里(锥形瓶A、B)。分别向试管Ⅰ、Ⅱ中注入15毫升蒸馏水。向锥形瓶A中加入约100克硝酸铵,向锥形瓶B中注入150毫升冷水。加热烧瓶里的反应混和物,至有较多气泡出现
A round-bottomed flask was equipped with a double-hole rubber stopper. One hole was inserted into a separatory funnel. 5 g of manganese dioxide was placed in the flask, 10 ml of sulfuric acid (1:1) was added, and 12 ml of water was poured into the separatory funnel. Ethanol (or 13-14 ml 95% ethanol). Plug the other end of the rubber plug into a gas pipe, and connect two test tubes (test tubes I, II, and ) with rubber plugs in order and place them in two conical flasks (conical flasks A and B). Separately inject 15 ml of distilled water into test tubes I and II. About 100 g of ammonium nitrate was added to Erlenmeyer flask A, and 150 ml of cold water was poured into Erlenmeyer flask B. Heat the reaction mixture in the flask until more bubbles appear