Thermodynamics of the system MgCl{sub 2}-NaCl-H{sub 2}O to 573 K: New measurements of heat of mixing and heat of dilution
Journal Article
·
· International Journal of Thermophysics
- Lawrence Berkeley National Lab., CA (United States)
Heats of mixing of NaCl(aq) with MgCl{sub 2}(aq) at 373.15, 423.15, 523.15, and 573.15 K for ionic strengths of 0.5 to 3.8 mol{center_dot}kg{sup {minus}1}, and heats of dilution of MgCl{sub 2}(aq) at 523.15 and 573.15 K for ionic strengths of 0.3 to 4.6 mol{center_dot}kg{sup {minus}1}, have been measured at 205 MPa. These experimental data are combined with published heat of mixing data at 298 and 373 K to provide a comprehensive Pitzer ion-interaction treatment for the thermodynamic properties of the NaCl-MgCl{sub 2}{center_dot}H{sub 2}O system to 573 K. The treatment includes a general equation valid to 523 K, incorporating the published equations for NaCl(aq) and MgCl{sub 2}(aq), and equations for MgCl{sub 2}(aq) and the mixed system valid at 573 K.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 675545
- Report Number(s):
- CONF-970629--
- Journal Information:
- International Journal of Thermophysics, Journal Name: International Journal of Thermophysics Journal Issue: 3 Vol. 19; ISSN 0195-928X; ISSN IJTHDY
- Country of Publication:
- United States
- Language:
- English
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