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介绍采用重量法快速测定磷矿中氧化镁质量分数的方法。铵盐分离干扰元素,利用磷酸二氢铵形成磷酸铵镁沉淀来计算氧化镁的质量分数。该方法重现性和准确度好,适用于磷矿中氧化镁含量的快速测定。
The method for gravimetric determination of magnesium oxide in phosphate rock by gravimetric method is introduced. Ammonium salts interfere with the separation of elements, the use of ammonium dihydrogen phosphate to form magnesium ammonium phosphate precipitate to calculate the magnesium oxide mass fraction. The method has good reproducibility and accuracy and is suitable for the rapid determination of magnesium oxide content in phosphate rock.