Thermodynamics of aqueous sodium sulfate

Journal Article · Tue Jun 01 04:00:00 EDT 1982 · J. Solution Chem.; (United States)

DOI:https://doi.org/10.1007/BF00649039· OSTI ID:6449571

Pitzer, K S; Murdzek, J S

The activity coefficient of saturated aqueous Na/sub 2/SO/sub 4/ is calculated from the properties of the solid and the infinitely dilute solution as well as the solubility. These values are compared with those given by the equation of Rogers and Pitzer which is based on the measured dependence of heat capacity upon molality together with other solution properties at low temperature. Excellent agreement is found from 30 to 280/sup 0/C. Consequently the equation of Rogers and Pitzer is given an extended range of validity to saturated molality and to 280/sup 0/C. The trend of solubility with temperature is discussed in relation to the ..delta.. C/sub p/ of solution.

• Research Organization: Univ. of California, Berkeley
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6449571
• Journal Information: J. Solution Chem.; (United States), Journal Name: J. Solution Chem.; (United States) Vol. 11:6; ISSN JSLCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
CHEMICAL REACTION KINETICS
KINETICS
LOW TEMPERATURE
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
REACTION KINETICS
SODIUM COMPOUNDS
SODIUM SULFATES
SOLUBILITY
SULFATES
SULFUR COMPOUNDS
TEMPERATURE DEPENDENCE
THERMODYNAMIC ACTIVITY
THERMODYNAMIC PROPERTIES