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目前一些厂矿实验室常用重量法测定稀土(硅、钙、镁)合金中硅的含量,方法准确度虽高,但手续繁杂,分析周期相当长,不能满足生产的需要。差示比色法比较快速,但不能用于缺乏精密比色计设备的实验室,为此我们又试验了用氟硅酸钾直接容量法,测定稀土(硅、钙、镁)合金中硅的方法。在本文中我们结合稀土合金中所含成份的特点,试验了其它共存元素的影响,选择了适
At present, some factories and mines laboratories commonly used gravimetric method to determine the content of silicon in rare earth (silicon, calcium and magnesium) alloy. Although the method has high accuracy, the procedures are complicated and the analysis period is quite long, which can not meet the needs of production. Differential colorimetry is fast, but can not be used in laboratories that lack precision colorimeter equipment. To this end, we also tested the use of potassium fluosilicate direct capacity method for the determination of silicon in rare earth (silicon, calcium, magnesium) alloys method. In this paper, we combine the characteristics of rare earth alloy components contained in the test of the impact of other coexisting elements, select the appropriate