Complex Formation between Tributyl Phosphate and Nitric Acid and the Hydration of the Complexes in Dodecane
作者:Hirochika Naganawa、Shoichi Tachimori
DOI:10.1246/bcsj.70.809
日期:1997.4
Complex-formation of nitric acid with tributyl phosphate (TBP) and the hydration of the complexes in dodecane were examined from the acid and water distribution data between the aqueous and organic phases at 298 K. The equilibrium constants were determined by analyzing the acid and water distribution data as functions of the TBP concentration in the organic phase, the aqueous acid activity, and the water
硝酸与磷酸三丁酯 (TBP) 的配合物形成以及配合物在十二烷中的水合作用通过 298 K 时水相和有机相之间的酸和水分布数据进行检验。平衡常数通过分析酸和水来确定作为有机相中 TBP 浓度、含水酸活性和水活性的函数的分布数据。当硝酸水溶液浓度不高于3 mol dm-3时,有机相中发现了三种配合物(TBP·HNO3、(TBP)2·HNO3和(TBP)3·HNO3)。还获得了这些配合物的水合数。TBP·HNO3 主要是无水的,但部分是一水合物。相比之下,(TBP)2·HNO3 只是一水合物,(TBP)3·HNO3 只是四水合物。TBP–HNO3–H2O 化学计量,