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在使用蒸汽动力的锅炉设备的工业,如化学工业、电业、纺织业、以及蒸汽机车等,为调节锅炉给水的处理,延长锅炉的寿命,保证安全操作,每日须经常对锅炉水及软化后的水,测定pH 值,总碱度,氢氧化物碱度,碳酸盐碱度及氯根。其中后四者均可用普通简单的滴定法测定,至于pH 值的测定则需要另外一套电器的测定仪器或是比色法。所用的缓冲溶液(Buffer Solution)或滴数比率法(Drop-ratio method)也需要特殊的指示剂及较繁的操作。现在介绍一种方法,以前在拙著「水的硬度检定」中(参看本刊6卷11期)已曾叙及,即所谓「含钠量」方法,其意义代表pH 值,且尚有其他更广泛的应用。以下将叙述含钠量的意义及
In industries that use steam-powered boiler equipment, such as the chemical industry, electrical industry, textile industry, and steam locomotives, in order to regulate the treatment of boiler feed water, extend the life of boilers, and ensure safe operation, boiler water and softening are often required daily. After the water, determine the pH, total alkalinity, hydroxide alkalinity, carbonate alkalinity, and chloride. The latter four of them can be measured by ordinary simple titration method. As for the determination of pH value, another set of electrical measuring instrument or colorimetric method is needed. The Buffer Solution or the Drop-ratio method also requires special indicators and more complicated operations. Now we introduce a method that was previously described in the “Water Hardness Verification” (Reference 6:11), which is the so-called “sodium content” method. Its meaning is representative of pH, and there are others. Wide range of applications. The following will describe the meaning of sodium content and