【摘 要】
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The compositions of the extracted complexes of La, Gd, Er and Y with sec-octyl-phenoxy acetic acid in heptane and the related apparent extraction equilibrium co
【机 构】
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Laboratory of Rare Earth Chemistry and Physics,Department of Chemistry
论文部分内容阅读
The compositions of the extracted complexes of La, Gd, Er and Y with sec-octyl-phenoxy acetic acid in heptane and the related apparent extraction equilibrium constants KM were determined using two-phase titration technique. The stoichiometric compounds for La, Gd, Er and Y should be LaA3*2.5HA, GdA3*3HA, ErA3*3.1HA and YA3*4.3HA respectively. And their pKM are 3.43, 3.46, 3.08 and 2.58 respectively.
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