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研究了硫酸铵-1(2吡啶偶氮)2萘酚磺酸-Tween80体系萃取铁的行为。试验表明,当溶液pH20～40,能使Fe(Ⅱ)与Zn(Ⅱ),Cd(Ⅱ),Mn(Ⅱ),Mg(Ⅱ),A(Ⅲ)定量分离。应用该法测定了铝合金中Fe的含量,结果满意。
The extraction behavior of iron with ammonium sulfate-1 (2-pyridylazo) 2-naphtholsulfonic acid-Tween80 system was studied. The results showed that when the solution pH was 20 ~ 40, the separation of Fe (Ⅱ) from Zn (Ⅱ), Cd (Ⅱ), Mn (Ⅱ), Mg (Ⅱ) and A (Ⅲ) The method was applied to determine the content of Fe in aluminum alloy with satisfactory results.