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青海省地质局中心实验室自1971年用离子交换法制备纯水以来,收到水质较蒸馏水提高一倍以上,节约劳动力50%,成本降低35%的经济效果。该法制备纯水简单易行,非常适合于野外队实验室运用,现将实验流程和经验分别介绍如下:一、离子交换法制备纯水的反应机理及理论依据主要利用水中含有离子与离子交换剂交换基团离子的可交换性。离子交换则是这种可游离交换的离子和水中同性离子间的交换过程。单床阳离子的交换过程为。R.SO_3H+M~+R.SO_3M+H~+
Since 1971, when the pure water was prepared by ion exchange method, the Central Laboratory of Qinghai Province Geological Bureau received the economic effect of doubling the water quality more than that of distilled water, saving labor force by 50% and reducing the cost by 35%. This method is simple and easy to prepare pure water, is very suitable for field team laboratory use, now the experimental process and experience are as follows: First, the ion exchange method to prepare pure water reaction mechanism and theoretical basis The main use of water containing ions and ion exchange Exchangeability of ion exchange groups. Ion exchange is the exchange of ions and water between the same sex ion exchange process. Single-bed cation exchange process is. R.SO_3H + M ~ + R.SO_3M + H ~ +