| Abstract: The thermodynamic parameters K, △H°, △C° and △S° values of complexation reaction for Cu( I ) with acetylene in CuCl-NH4Cl-HCl-H2O system have been determined by emf method with some improvement on experimental technique. The results obtained are as follows: For Cu·C2H2+ complex compound, the formation constants K values are 2.39×105, 1.70×105, 1.35×105, 1.00×105, at 25℃, 35℃,45℃, 55℃, respectively. That for Cu+·C2H- complex are 27.8, 33.8, 48.4, 64.2, respectively. These data are of interest in homogeneous liquid phase catalytic conversion of acetylene to various products, such as acetaldehyde, monovinylacetylene, vinyl chloride, etc. |
