介绍了利用磷肥企业含氟硅渣生产白炭黑工艺中，白炭黑中氟含量的分析方法。对氧硅酸钾法、电极法、比色法3种氟含量分析方法进行了比较，得出电极法操作简单，能快捷地分析出氟含量，是较合适的分析方法；如氟含量较高，采用氟硅酸法分析比较合适。%The article briefly had introduced the fluorine content analysis method in the hydrated silica, which was produced by fluorine silicon slag from the phosphate fertilizer enterprise. The fluorine content analysis methods including the potassium fluosilieate method,the electrode method and the colorimetric method were compared. It was drawn that the electrode method was a simple,quick analysis method of the fluorine content. So,it was more appro- priate analysis method of the fluorine content in the hydrated silica. If the hydrated silica had higher fluorine con- tent, the potassium fluosilicate analysis method was more appropriate.
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