Revised equations for determining the critical properties of NaCl-H2O system

被引：0
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作者：
Gong, Qingjie [1 ,2 ]
Yu, Chongwen [2 ]
Zhang, Ronghua [3 ]
Han, Dongyu [2 ]
机构：
[1] China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
[2] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
[3] Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China
来源：
PROCEEDINGS OF THE IAMG '07: GEOMATHEMATICS AND GIS ANALYSIS OF RESOURCES, ENVIRONMENT AND HAZARDS | 2007年
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Revised equations for determining the critical properties of NaCl-H2O system were fitted on the previous critical data of NaCl-H2O solutions. They are T = 374e(0.02267S+0.00004277S2) , P = 221e(0.04156S+0.1 160S1/2) and V = 3.11e(-0.23594 Psi+0.002837 Psi 2) where T, P, V and S are the critical temperature, critical pressure, critical volume and the salinity of NaCl-H2O solution with the units of degrees C, bar, cm(3)/g and weight percent of NaCl respectively, and Psi=ln(S+1). These equations are valid for the salinities up to 36.6% NaCl by weight and temperatures up to 900 degrees C, which are adequate for the study on the mechanism of supercritical geofluids taking part in the hydrothermal metallic mineralization.
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页码：751 / +
页数：3
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