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用离子交换剂将硬水軟化,這在工業上的应用是很早就开始,并且已很普遍了。但近年来由于离子交换树脂的发明和不断改进,在医药、工業及研究部門更可以用它来净化水,以代替蒸餾水。 凈水处理虽不能去除水中的微生物及微量的有机物質,但能去除水中几乎全部的阴、阳离子,使水变成pH6—9的純水(一般蒸餾水因含有CO_2,pH为4.5—5),能提净水內監类到仅为0.001—10ppm。把上海化学試剂公司出售的“华东强酸阳42号”
The use of ion exchangers to soften hard water, which has long been used industrially, has become widespread. However, in recent years due to the invention and continuous improvement of ion exchange resins, it can be used to purify water instead of distilled water in medical, industrial and research departments. Although the water treatment can not remove microorganisms and trace amounts of organic matter in the water, it can remove almost all of the anions and cations in the water to make the water become pure water with a pH of 6 to 9 (generally, the distilled water contains CO 2 and the pH is 4.5 to 5) Can mention pure water monitoring class to only 0.001-10ppm. Shanghai Chemical Reagent Company sold “Huadong strong acid Yang 42”