高三年课本第115页207图说明工业上电解食盐溶液制取苛性钠时,常用石棉制的多孔质隔板以隔离阴极和阳极,避免氯气跟生成的苛性钠发生反应,过去我校因买不到石棉隔板,教师不可能进行课堂演示。现在我以竹筒代替它,把竹筒的外皮和硬质的内壁剥掉,使竹筒修成一个筒壁厚度不超出约0.2厘米的圆筒,然 High three year textbook p. 115 207 Illustrate Industrial Electrolytic Salt Solution When making caustic soda, a porous separator made of asbestos is often used to separate the cathode from the anode to prevent chlorine from reacting with the caustic soda produced. In the past, To the asbestos separator, the teacher can not conduct a class presentation. Now I replace it with a bamboo tube, the outer skin of bamboo and hard peel the inner wall, so that the bamboo into a cylinder wall thickness does not exceed about 0.2 cm of the cylinder,