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高精度标准电池(年变比值小于1μV)中的硫酸亚汞,公认的最好制备方法是直流电解法。但是,用什么样的电解条件方能制备结晶颗粒均匀的产物,是研制者1长期以来很感兴趣的问题。小川曲男等指出,硫酸亚汞的质量是影响高精度标准电池电动势的复现性、稳定性和其它诸特性的最重要的因素,而且还指出,均一的生成物不易得到。作者于一九七二年曾参加高精度标准电池的研制工作。研制的电池,其电动势的平均年变化值为0.33μV,硫酸亚汞是采用与美国国家标准局基本相同的装置及电解条件制备
High-precision standard batteries (annual change ratio of less than 1μV) of mercury in the mercury, the best preparation is recognized by DC electrolysis. However, what kind of electrolysis conditions can be used to prepare products with uniform crystal grains is of great interest to the developer 1 for a long time. Ogawa song men pointed out that the quality of mercury sulfate is the impact of high-precision standard battery emf reproducibility, stability and other characteristics of the most important factor, but also pointed out that the uniform product is not easy to get. The author participated in the development of high-precision standard batteries in 1972. Developed batteries, the electromotive force average annual change of 0.33μV, mercuric sulfate is used with the United States National Bureau of Standards and the basic equipment and electrolysis conditions