本演示器容易制作,操作方便。一、仪器构造如下图所示二、制法二.阴极箱先将铁丝网绕成圆筒形,一端闭口,除去铁锈。然后将石棉粉用水玻璃和饱和食盐水调成糊状,均匀地涂在铁丝网内面一薄层(约2mm)。阴干后,放在稀盐酸中进行酸处理,使硅酸钠转变成不易受氯气和稀碱液腐蚀的二氧化硅。用清水冲洗后阴干,即可作阴极装入槽内。电解槽用圆玻璃缸(或有机玻璃圆缸)。 This demonstrator is easy to make and easy to operate. First, the instrument structure is shown in the following figure Second, the system of law II. Cathode box first wire into a cylindrical wire, one end closed, remove rust. Then asbestos powder was slushed with water glass and saturated saline solution, and evenly coated on the inner surface of the wire mesh (approximately 2 mm). After drying in the shade, acid treatment was performed in dilute hydrochloric acid to convert sodium silicate to silica which is not easily corrosive by chlorine gas and dilute lye. Rinse with dry water and dry it. Circular glass cylinder (or plexiglass cylinder) for electrolyzers.