摘要
配合物离解和矿物溶解等地球化学反应的平衡常数(K)是地球化学计算最重要的热力学参数之一,它是由一定pT条件下实验测得的有关热力学数据计算出的,由于对各种反应的实验研究条件和程度不一,计算条件和精度要求各异,因此,对于每一具体反应应根据不同的需要和已有的热力学数据求取平衡常数,本文综述了不同条件下求取平衡常数的方法,并简要评述了平衡常数的可靠性。
The equilibrium constant (K) for the geochemical reactions , such as the dissociation of aqueous complexes and dissolution of minerals,is one of the most important thermodynamic parameters for the geochemical calculations and is computed by the experimental data measured from thermodynamic experiments at various pT conditions. Because of the difference of experimental conditions and study levels for different reactions and various requirements of computing conditions and experimental precision, it is necessary to use different methods to compute the equilibrium constant (K) for a given reaction from the experimental thermodynamic data available. The computing methods for equilibrium constants at different conditions are summarized and its reliability has been briefly reviewed.
出处
《华南地质与矿产》
CAS
1999年第4期63-68,共6页
Geology and Mineral Resources of South China
基金
国家自然科学基金项目"扎布耶盐卤水六盐体系相平衡与相图研究"(No.49773200)
地质矿产部"九五"攻关项目"云开地区重要成矿区带金银铜铅锌成矿地质背景及找矿靶区优选研究"(95-02-007)联合资助