氯化镁盐分析方法试验研究

氯化镁盐主要成分是氯化镁、氯化钾镁及其水化物，常含有氧化镁、氢氧化镁、硫酸镁等杂质。氯化镁盐常规分析方法是采用化学分析。采用化学分析方法经常出现2个问题：1）氯化镁盐极易吸潮，定量分析困难；2）分析出的镁含量包含了非氯化镁盐中的镁，如氧化镁、氢氧化镁中的镁。针对以上问题提出了一种综合分析方法，主要利用X射线衍射仪进行测试，配合常规的物理、化学分析手段。实验结果表明，该方法操作较为简便，定量效果较好，能够满足工业生产需要，是一种较为理想的分析方法。

Study on analysis method of magnesium chloride salt

Magnesium chloride salt is mainly composed of magnesium chloride，potassium magnesium chloride，and the hydrates thereof，and it also usually contains impurities，such as magnesium oxide，magnesium hydroxide，and magnesium sulfate.The conventional analysis method of magnesium chloride salt is chemical analysis，but it always has two problems：1） As magnesium chloride salt can easily absorb moisture，the quantitative analysis is difficult；2）The analyzed magnesium content of magnesium chloride salt includes the contents of magnesium in magnesium oxide and magnesium hydroxide etc..A comprehensive analysis method that combined X-ray diffraction test with the conventional physical and chemical analysis methods was put forward.Experimental results showed that the method was simple and convenient in operation；its quantitative effect was good，and it could satisfy the demands of industrial production.Therefore，it′s an ideal analysis method.