化学试剂与工业产品氟化氢铵含量的测定差别

Chemical and industrial product ammonium hydrogen fluoride content determination of the difference

本文从滴定分析原理、指示剂的选择详细讲述了化学试剂与工业产品氟化氢铵含量的分析方法差别,其差别的原因主要在于工业产品氟化氢铵中所含有的氟硅酸,并指出当工业产品氟化氢铵中的氟硅酸铵含量低于0.5%时,两个滴定方法才可以互相通用的。

In this paper, from the principle, the choice of indicator titration analysis chemical reagent is described in detail and the analysis method of industrial product ammonium hydrogen fluoride content difference, the difference the reason mainly lies in the industrial product ammonium hydrogen fluoride is contained in fluosilieate, and points out that when the industrial product ammonium fluosilieate of ammonium hydrogen fluoride content lower than 0.5%, the two titration method can be common with each other.