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肼类药物与碘化汞钾碱性溶液反应,可定量地沉淀出金属汞,加八一定量0.02N 碘溶液,以乙酸酸化后,剩余的碘用0.02N 硫代硫酸钠溶液滴定即可测定肼类药物的含量。试剂:秤取碘化钾3.5克及氯化汞1.5克,溶于80毫升水中,加入氯化汞的饱和溶液,随加随搅拌至微有红色沉淀。再加入12克氢氧化钠使其溶解,最后再加入少量氯化汞饱和溶液及定量水使成
Hydrazine drugs and potassium iodide mercuric chloride solution can be quantitative precipitation of metal mercury, plus a certain amount of iodine 0.02N iodine solution, acidified with acetic acid, the remaining iodine with 0.02N sodium thiosulfate solution titration can be Determination of hydrazine drugs content. Reagents: Weigh 3.5 g of potassium iodide and 1.5 g of mercuric chloride, dissolve in 80 ml of water, add a saturated solution of mercuric chloride, and agitate with stirring to slightly red precipitate. Then add 12 grams of sodium hydroxide to dissolve, and finally add a small amount of mercury chloride saturated solution and quantitative water to