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1.制取氢气在图a装置的左边放入几粒锌粒,盖好带活塞导管的橡皮塞,打开活塞,从右端注入稀硫酸(或稀盐酸),即反应产生氢气。2.钠、钾跟水(或乙醇)的反应。连通器中先注入蒸馏水(或乙醇)到距离左端管口约2毫米为止。将小块钠或钾用滤纸吸去煤油或液态石腊,放到安装在橡皮塞中的玻璃药匙
1. Preparation of Hydrogen Put a few grains of zinc on the left side of the device in Figure A, cap the rubber stopper with piston guide, open the piston, and inject dilute sulfuric acid (or dilute hydrochloric acid) from the right end, ie, generate hydrogen by reaction. 2. The reaction of sodium and potassium with water (or ethanol). Distilled water (or ethanol) is injected into the manifold until it is approximately 2 mm from the left end of the tube. A small piece of sodium or potassium is sucked with filter paper to remove kerosene or liquid paraffin and placed in a glass spoon installed in a rubber stopper.