前言纯净的汞在分析化学、电化学、医药及理化仪器等方面的应用很广。其原料在我国湖南、贵州等地均有出产;合乎工业规格的汞颇易购得。如需用纯汞,只须将不纯的汞加以精制即得。惟考诸文献所载关于精制汞的仪器,一般在普通实验室中皆较难装备;能装备的,其精制效果亦大多不能令人十分满意。为此,笔者曾就实验室中利用寻常所用仪器作了初步试验,现将个人所得的点滴经验略述于次,以供参考。 Introduction Purified mercury is widely used in analytical chemistry, electrochemistry, medicine and physical and chemical instrumentation. Its raw materials in China, Hunan, Guizhou and other places have produced; meet the specifications of the mercury is quite easy to buy. For pure mercury, only impure mercury should be purified. However, all the instruments contained in the literature on refined mercury are generally more difficult to equip in ordinary laboratories. Most of the equipment that can be equipped with such refined products can not be very satisfactory. To this end, I used to laboratory equipment used in the ordinary test made a preliminary test, now personal experience of the experience outlined in times, for reference.