【摘要】 根据对非电解质水溶液密度实验数据的分析,考虑组分的临界参数和溶液中氢键的影响,导出了二元和多元非电解质水溶液密度的关联式。利用本文关联式计算了7个二元水溶液体系440个数据点的密度,总平均相对误差0.515%;计算了5个三元水溶液体系194个数据点的密度,总平均相对误差为0.405%。计算准确性优于Campbell等人的关联式。使用本模型可由手册查到的纯物质的临界参数和密度等数据,预测非电解质水溶液的密度。更多还原

【Abstract】 On the basis of analysis for the density experiment data of nonelectrolyte aqueous solutions,considering the influence of component critical parameters and hydrogen bond,derive a new density correlation for binary and polynary non-electrolyte aqueous solution.Calculate 440 density data for 7 binary non-electrolyte aqueous solution systems and 194 density data for ternary aqueous non-electrolyte solutions systems with the overall average relative deviations of 0.515% and 0.405% respectively,the accurate of which takes precedence over Campbell and others’ correlation.By using the model,the densities of nonelectrolyte aqueous solution can be predicted from the critical parameters and densities of pure materials in the handbooks.更多还原