烧水壶使用一段时间后,壶壁就会结上一层黄灰色或白色的沉淀物质,这就是我们常说的水垢。由于它对人体危害很大,被称之为“杀人凶手”。 科学家指出,天然水中常含有硫酸钙与镁的碳酸盐、硅酸盐等杂质,在烧开水加热后,所含杂质的结构改变,成为难溶于水的沉淀物而积聚起来。水垢的危害很大,因为水垢是一种复杂的物质,除盐类外,还 After using the kettle for a period of time, the pot wall will be covered with a layer of yellowish-gray or white sediment, which is what we often say scale. Because of its great harm to human body, is called “murderer.” Scientists pointed out that natural water often contain calcium carbonate and magnesium carbonate, silicate and other impurities in the boiled water heating, the impurities contained in the structure change, as insoluble precipitate in water and accumulation. Scale is very harmful, because scale is a complex material, in addition to salts, but also