摘要
以氯化亚锡还原铁（ Ⅲ） ，碘酸钾消除余量锡（ Ⅱ） 的影响，然后用二苯胺磺酸钠为指示剂，标准硫酸铈滴定铁（ Ⅱ） ．
The iron(Ⅲ)is reduced by stannnous chloride crystal and the rest of tin(Ⅱ) is eliminated by potassium iodin.Then,the iron(Ⅱ) is titrated by cerium sulfate with sodium diphenylamine sulphonale as indicator.
关键词
铁
硫酸铈
测定
无汞无铬法
iron
the analysis method of no mercury and no chrominm
cerium sulfate
