Washing powders — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
洗衣粉;总磷(V)氧化物含量的测定——磷钼酸喹啉重量法
发布日期:
1976-11-01
测定方法如下:用硝酸水解聚磷酸盐。在丙酮溶液中以喹啉磷钼酸盐形式沉淀磷酸盐。沉淀物的干燥和称重。
The determination is carried out in the following way: Hydrolysis of polyphosphates by nitric acid. Precipitation of phosphates in the form of quinoline phosphomolybdate in acetone solution. Drying and weighing of the precipitate.