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首页> 外文期刊>European Chemical Bulletin >EFFECT OF SULPHATE ION CONCENTRATION ON NICKEL (II) EXTRACTIONS FROM AQUEOUS SOLUTION USING 1-PHENYL-3-METHYL-4-TRICHLOROACETYL PYRAZOL-5-ONE IN CHLOROFORM
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EFFECT OF SULPHATE ION CONCENTRATION ON NICKEL (II) EXTRACTIONS FROM AQUEOUS SOLUTION USING 1-PHENYL-3-METHYL-4-TRICHLOROACETYL PYRAZOL-5-ONE IN CHLOROFORM

机译：硫酸根离子浓度对氯仿中1-苯基-3-甲基-4-三甲苯基乙酰基吡咯-5-酮从水溶液中萃取镍（II）的影响

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摘要

The extraction of Ni 2+ from aqueous solutions of various concentrations of SO 4 2- ions in buffered media using 1-phenyl-3-methyl-4-trichloroacetyl-pyrazolone-5 (HTCP) has been investigated. The synergistic effect of butanol on the extraction of the metal was also examined. Ni 2+ was quantitatively extracted from solutions of HTCP only at high pH values (5 - 8) over the pH range 0 – 8 studied. However, addition of butanol resulted in a synergistic extraction of Ni 2+ up to 97.78% over the range of pH 5.00 – 8.00 from aqueous buffer media containing 0.1M SO 4 2- ion concentration. Increased SO 4 2- ion concentration resulted in a slight decrease in the extraction of Ni 2+ ion due to masking of the metal by the SO 4 2- ion. In addition, overall extraction was shifted to higher pH values for extraction into chloroform solution of the ligand for Ni 2+ using butanol. The log K ex and pH 1/2 of the various extraction systems were determined.
机译：研究了使用1-苯基-3-甲基-4-三氯乙酰基吡唑啉酮5（HTCP）从缓冲液中各种浓度的SO 4 2-离子水溶液中提取Ni 2+的方法。还研究了丁醇对金属萃取的协同作用。仅在研究的pH范围为0-8的高pH值（5-8）下，才从HTCP溶液中定量提取Ni 2+。但是，添加丁醇会导致在pH 5.00 – 8.00范围内从含0.1M SO 4 2-离子浓度的水性缓冲介质中协同提取高达97.78％的Ni 2+。由于SO 4 2-离子掩盖了金属，因此增加的SO 4 2-离子浓度导致Ni 2+离子萃取量略有下降。另外，将整体萃取转移至较高的pH值，以使用丁醇萃取至Ni 2+配体的氯仿溶液中。确定了各种萃取系统的log K ex和pH 1/2。

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