| 硫代硫酸钠滴定法测定市售食盐中的碘含量 |
| |
| 引用本文： | 宋立彬.硫代硫酸钠滴定法测定市售食盐中的碘含量[J].安阳师范学院学报,2002(5):80-81. |
| |
| 作者姓名： | 宋立彬 |
| |
| 作者单位： | 驻马店师专,化学系,河南,驻马店,463000 |
| |
| 摘 要： | 市售加碘盐中的碘素主要以IO3^-的形式存在，而IO3^-在酸性介质中能被I^-还原成I2，生成的I2再用Na2S2O3标准溶液滴定，以淀粉为指示剂，滴定至溶液的蓝色刚好消失为终点，从而求得加碘盐中的碘含量。
|
| 关 键 词： | 硫代硫酸钠滴定法 加碘食盐 含碘量 碘盐检测 含量测定 滴定体系 |
| 文章编号： | 1671-5330(2002)05-0080-02 |
| 修稿时间： | 2002年8月25日 |
Gauging the Amount of Iodine in Salt on Sale by the Way of Na2S2O3 Titration |
| |
| SONG Li-bin.Gauging the Amount of Iodine in Salt on Sale by the Way of Na2S2O3 Titration[J].Journal of Aayang Teachers College,2002(5):80-81. |
| |
| Authors: | SONG Li-bin |
| |
| Abstract: | The iodine element in the salt with iodine on sale is in the existence of IO - 3; however, IO - 3 can be reduced into I 2 by I - in acid medium. The produced I 2 can be titrated by Na 2S 2O 3 standard titrant, with starch as indicator, titrating until the blue color in the solution disappears, then the amount of iodine in the salt with ioeine is obtained. |
| |
| Keywords: | salt with iodine amount of iodine gauge |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
