简介磷钼酸喹啉沉淀所用玻璃砂心坩埚的处理方法

Introduction the Processing Method of Phosphorus-molybdic-acid-quinoline Precipitayion Used Crucible

在酸性介质中,试样溶液中的正磷酸根与喹钼柠酮试剂反应生成黄色的磷钼酸喹啉沉淀,用磷钼酸喹啉重量法测定其含量。通常采用预先在180±2℃干燥箱内干燥至恒重的玻璃砂心坩埚进行过滤。而过滤后带有磷钼酸喹啉沉淀坩埚的处理,却一直是一个让工作人员很头痛的问题。

In acidic medium,in the specimen solution phosphoric acid root with kui the molybdenum lemon alkone reagent response production yellow Phosphorus-molybdic-acid-quinoline precipitavion,determines its content with the Phosphorus-molybdic-acid-quinoline constant weight method.The glass arenaceous heart crucible that was ovened advancely in 180±2 ℃ oven to dry and constant weight is used to filter.The processing method of Phosphorus-molybdic-acid-quinoline precipitayion used crucible is a very headache problem for the worker.