Extraction of copper with p-tert-butyl-calixarenes |
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| Authors: | YANG Yu-Xiang SHI Xian-Fa DING Shi-ChaoCHEN Yu-De XU Di-Min |
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| Institution: | YANG,Yu-Xiang SHI,Xian-Fa DING,Shi-ChaoCHEN,Yu-De XU,Di-MinDepartment of Chemistry,Tongji University,Shanghai 200092,China CHEN,Rong-SanStole Key Laboratory of Coordination Chemistry,Nanjing University,Nanjing,Jiangsu 210093,China |
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| Abstract: | The extraction of copper with calixarenes was researched by comparing the results from calix4]-,calix6]-and calix8]-arenes.Hie extraction ability increased as the order:calix 4]-> calix8]-> calix6]-arenes,with the binding ratio being 1:1.The extraction mechanism was also discussed,and itsequation Cu(NH3)42 H2L(0)Cu(NH3)4L(0) 2H and the extraction equilibrium constants(Ker)for calix6]-and calix8]-arenes were obtained respectively. |
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| Keywords: | Calixarenes copper extraction equation equilibrium constants |
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