Thermochemical Study on the Chiral Sodium Zincophosphate Nanocrystalline

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2006,（4）
• 页码范围: 453-456
• 页数: 4页
• 语种: 英文

摘要

Chiral sodium zincophosphate nanocrystalline has been prepared and characterized. The standard molar enthalpy of the following reaction 12Na3PO4·12H2O(s) + 12ZnSO4·7H2O(s) = Na12(Zn12P12O48)·12H2O(s) +12Na2SO4(s)+216H2O(1) was determined by solution reaction calorimetric at 298.15 K, and calculated to be 33.666+0.195 kJ/mol. From the results and other auxiliary quantities, the standard enthalpy of formation for sodium zincophosphate nanocrystalline was derived to be AfHmΘ [Na12(Zn12P12O48)·12H2O(s), 298.15 K]=-24268.494t0.815 kJ/mol.