高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 236.

• Chromatography and Separation Sciences • 上一篇    下一篇

Mechanism of Homogeneous Liquid-Liquid Extraction

Masaaki Tabata   

  1. Dept. of Chemistry, Faculty of Science and Engineering, Saga Univ., 1-Hoy. jyo-machi, Saga, 840-8502, Jcpan
  • 出版日期:1999-12-31 发布日期:1999-12-31

Mechanism of Homogeneous Liquid-Liquid Extraction

Masaaki Tabata   

  1. Dept. of Chemistry, Faculty of Science and Engineering, Saga Univ., 1-Hoy. jyo-machi, Saga, 840-8502, Jcpan
  • Online:1999-12-31 Published:1999-12-31

PDF (PC)

被引次数

45

摘要：

Extraction mechanism and solvent structure were studied for the solvent extraction of cationic porphyrin (5,10,15,20-tetrakis(l-methyl-pyridinium-4-yl) porphyrin; H2(tmpyp)4+, and its metalloporphyrins (MP(n+2)+-) into an acetonitrile phase separated from a 1:1 (v/v) mixture of acetonitrile with water by addition of sodium chloride, where Mn+ denotes Zn2+, Cu2+,Co3+, Fe3+, and Mn3+, and H2P4+ is the free base form of H2tmpyp4+. The separated acetonitrile phase contains a lot of water (4.53 mol dm-3) and sodium chloride (2.49×10-2 mol dm-3) that afford to extract the highly charged chemical species of the above porphyrin or metalloporphyrins with perchlorate ion (X-). The extracted chemical species dissociate in the acetonitrile phase.

Abstract:

Extraction mechanism and solvent structure were studied for the solvent extraction of cationic porphyrin (5,10,15,20-tetrakis(l-methyl-pyridinium-4-yl) porphyrin; H2(tmpyp)4+, and its metalloporphyrins (MP(n+2)+-) into an acetonitrile phase separated from a 1:1 (v/v) mixture of acetonitrile with water by addition of sodium chloride, where Mn+ denotes Zn2+, Cu2+,Co3+, Fe3+, and Mn3+, and H2P4+ is the free base form of H2tmpyp4+. The separated acetonitrile phase contains a lot of water (4.53 mol dm-3) and sodium chloride (2.49×10-2 mol dm-3) that afford to extract the highly charged chemical species of the above porphyrin or metalloporphyrins with perchlorate ion (X-). The extracted chemical species dissociate in the acetonitrile phase.

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