Chinese Journal of Applied Chemistry ›› 1995, Vol. 0 ›› Issue (3): 57-60.

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Sudy on the Extraction of Chromium(Ⅵ)by Primary Amine N1923

Ge Zhanqin1, Yang Yonghui2, Sun Sixiu2, Shen Jinglan2   

  1. 1. Hebei Institute of Chemical Technolog and Light Industry, Shijiazhuang;
    2. Department of Chemistry, Shandong University, Jinan 250100
  • Received:1994-08-16 Revised:1994-12-30 Published:1995-06-10 Online:1995-06-10

Abstract: The extraction of chromium(Ⅵ)from sulfate medium with primary amine N1923 has been studied by the distribution method and IR spectrography at 298K.The resultsshowed the extraction reactions as follows:RNH2(0)+2H++Cr2O72-=RNH3·HCr2O7 K1.1 2RNH2(0)+2H++Cr2O72-=(RNH3)2Cr2O7 K2.1 logK1.1=1.83 logK2.1=3.99

Key words: chromium, primary amine N1923, extraction