JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 1992, Vol. 16 ›› Issue (01): 13-18.doi: 10.3969/j.jssn.1000-2006.1992.01.003

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STUDIES ON PROTONATION CONSTANTS AND COORDINATION COMPOUNDS STABILITY CONSTANTS OF TANNINS

Huang Jianling Sun Dawang Ma Xinliang Wu Dong(Basic Courses Division)   

  1. Department of Chemical Engineering
  • Online:1992-03-18 Published:1992-02-18

Abstract: The protonation constants of tannins and its coordination compounds stability constants were studied by equilibrium pH method at 20癈 and constant ionic strength. The result shows the distribution diagram of ligands of tannins respectively. In the same way, the protonation constants and stability constants of three kinds of models about phenol, catechol and pyrogallol were determined.