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在有柠檬酸的硝酸溶液中,微波作用下把溶矿和生成磷钼酸铵黄色沉淀一步完成;沉淀经过滤、洗涤后,溶于碱标准溶液中,然后用酸标准溶液滴定过量的碱,即可求出五氧化二磷的量,方法快速。
In a citric acid solution of nitric acid, dissolving and forming a yellow precipitate of ammonium phosphomolybdate under the action of microwaves are completed in one step; the precipitate is filtered, washed, dissolved in an alkali standard solution, then titrated with an excess amount of an alkali with an acid standard solution, You can find the amount of phosphorus pentoxide, fast method.