氢氧化铝中氧化铝含量测定的几种方法比较

文章采用锌盐返滴定法、铜盐返滴定法对氢氧化铝中氧化铝含量的测定与国标"氢氧化铝"中氧化铝含量的测定进行了比较试验,分别介绍了锌盐返滴定法、铜盐返滴定法的基本原理、测试步骤及试验过程中应注意的问题,并做了回收试验。结果表明三种方法可以互换。

Comparison Between the Three Methods of Determining for the Amount of Aluminum Oxide in Aluminum Hydroxide

This paper is about the comparative experiment between the methods of zinc salt back titration and copper salt back titration adopted to determine the amount of aluminum oxide in aluminum hydroxide and that of the national standard about the "aluminum hydroxide".At the same time,the paper introduces respectively the basic principles,the test steps,the test process and the points for attention in this experiment of the back titration methods of zinc salt and copper salt.Finally,a recovery test has been carried out and the experiment result shows that these three methods can be exchanged for one another.