Isothermal diffusion coefficients for NaCl-MgCl sub 2 -H sub 2 O at 25 degree C. 1. Solute concentration ratio of 3:1
- Lawrence Livermore National Lab., CA (USA)
Isothermal interdiffusion coefficients have been obtained by Gouy interferometry for the ternary system NaCl-MgCl{sub 2}-H{sub 2}O at 25.00{degree}C and at a 3:l molarity ratio of NaCl to MgCl{sub 2}. Data are reported for total molar concentrations of 0.5, 1 .0, 2.0, 3.0, and 3.79 M. One cross-term diffusion coefficient, D{sub 12}, becomes greater than all the other diffusion coefficients above 3.2 M. This shows that at higher concentrations a flow of NaCl resulting from a concentration gradient of MgCl{sub 2} will be greater than the flow resulting from the same concentration gradient of NaCl itself. Also, a concentration gradient of MgCl{sub 2} will cause a greater flow of NaCl than of MgCl{sub 2} itself. Densities were measured for all the solutions; they were used to calculate partial-molal volumes of all components in the solutions and to interconvert reference frames for diffusion.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5093546
- Journal Information:
- Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 93:5; ISSN 0022-3654; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
DATA
DIFFUSION
EQUATIONS
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INFORMATION
INTERFEROMETRY
ISOTHERMAL PROCESSES
MAGNESIUM CHLORIDES
MAGNESIUM COMPOUNDS
MEDIUM TEMPERATURE
NUMERICAL DATA
OXYGEN COMPOUNDS
PHASE STUDIES
PREDICTION EQUATIONS
QUANTITY RATIO
SODIUM CHLORIDES
SODIUM COMPOUNDS
SOLUTES
SOLVENTS
WATER