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1.仪器装置 2.操作方法 ①在破试管的底部垫玻璃棉,再放石灰石(7)且把试管固定在铁架台上。(9为玻璃棉) ②将1:2的盐酸加到集气瓶里(8)(约50ml左右)。
1. Apparatus 2. Operation method 1 Place a glass wool on the bottom of the broken test tube, put limestone (7), and fix the test tube on the iron stand. (9 is glass wool) 2 Add 1:2 hydrochloric acid to the collection cylinder (8) (about 50 mL or so).