Apparent molar heat capacities and volumes of mixed electrolytes: [NaCl(aq) + CaCl{sub 2}(aq)], [NaCl(aq) + MgCl{sub 2}(aq)], and [CaCl{sub 2}(aq) + MgCl{sub 2}(aq)]

Journal Article · Wed Mar 01 04:00:00 EST 1995 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je00018a007· OSTI ID:43088

Saluja, P P.S.; Jobe, D J; LeBlanc, J C; Lemire, R J ^[1]

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1. AECL Research, Pinawa, Manitoba (Canada). Whiteshell Labs.

Heat capacities and densities of aqueous solutions containing mixtures of simple electrolytes, [NaCl(aq) + CaCl{sub 2}(aq)], [NaCl(aq) + MgCl{sub 2}(aq)], and [CaCl{sub 2}(aq) + MgCl{sub 2}(aq)], have been measured from 298.15 to 373.15 K at 0.6 MPa. For each system, values were obtained for full ranges of mixture compositions for total ionic strengths of approximately 3 and 5 mol/kg. Measurements for NaCl(aq) (0.11--5.95 mol/kg), MgCl{sub 2}(aq) (0.44--5.19 mol/kg), and CaCl{sub 2}(aq) (1.46--5.54 mol/kg) are also reported. The measurements were done using a flow differential heat capacity calorimeter in series with a vibrating-tube densimeter. Values for the apparent molar heat capacities and volumes are reported and compared to literature values and to values predicted by both Young`s rule and Pitzer`s theory.

• Sponsoring Organization: USDOE
• OSTI ID: 43088
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 2 Vol. 40; ISSN 0021-9568; ISSN JCEAAX
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
BINARY MIXTURES
CALCIUM CHLORIDES
CALORIMETRY
DENSIMETERS
DENSITY
ELECTROLYTES
EXPERIMENTAL DATA
MAGNESIUM CHLORIDES
SODIUM CHLORIDES
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES
VOLUME