重铬酸钾法测定铅锌矿石中铁的方法改进

介绍了用硅钼黄-重铬酸钾容量法测定铁的新方法。该法与目前的标准法比较，具有简便、快速、节省人力、物力、消除汞盐对环境的污染等优点。且准确度和精密度对某些样品的测定还优于标准法。适应浓度范围广。能满足多种矿物岩石中全铁测定的要求。还对铅锌矿物岩石样品的分解方法以及影响测铁准确度的一些因素进行了探讨。

Improvement of Potassium Dichromate Volumetric Method to Determine Iron Content in Lead Zinc Ores

Molybdosilicate yellow--potassium dichromate volumetric method was used to determine iron content, and the method was compared with the standard method, The results show that this method is more simple and quicker. It can save man power and material resources, and eliminate the pollution of mercuric salt. Accuracy and precision of this method are better than the standard method. At last, decomposing methods and some factors affecting precision were also discussed.