Two methods for the determination of magnesium in rare earth-magnesium middle alloy by EDTA titrimetry,i.e.oxalic acid precipitation and ammonium hydroxide precipitation,were studied.

• 研究了分别采用草酸和氢氧化铵沉淀分离稀土镁中间合金中的稀土,EDTA络合滴定法快速测定电解稀土镁中间合金中镁的两种方法。