THERMODYNAMICS OF SCALE MINERAL SOLUBILITIES .1. BASO4(S) IN H2O AND AQUEOUS NACL

被引：44

作者：

RAJU, K ^{[1
]}

ATKINSON, G ^{[1
]}

机构：

[1] UNIV OKLAHOMA,DEPT CHEM,NORMAN,OK 73019

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 1988年 / 33卷 / 04期

关键词：

MINERALS - Solubility - THERMODYNAMIC PROPERTIES - Prediction;

D O I：

10.1021/je00054a029

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A review of the solubilities of barium sulfate in water and aqueous NaCl is given. Equations to calculate C//p degree , DELTA H degree , DELTA S degree , DELTA G degree for all of the species in the solubility equilibrium are presented and the coefficients are computed. With these coefficients, all of the thermodynamic quantities and the equilibrium constant are expressed as a function of temperature. The calculated thermodynamic values are compared with the available literature values. Activity coefficients are calculated at the given NaCl concentration and temperature by using the Pitzer formalism. The best literature solubility data are used to calculate the needed coefficients. A computer program is used with these coefficients to predict the solubility of BaSO//4(s) in NaCl solutions up to 300 degree C.

引用

页码：490 / 495

页数：6

共 55 条

[1] THE DIELECTRIC CONSTANT OF WATER AT HIGH TEMPERATURES AND IN EQUILIBRIUM WITH ITS VAPOR [J].