Thermodynamic properties of calcium aluminates
Journal Article
·
· J. Phys. Chem.; (United States)
Enthalpy and entropy values for solid calcium aluminates have been compared with activity measurements and the known phase diagram to obtain improved revised values and an accurate calculated phase diagram for this binary system. The revised entropies (J mol/sup -1/ K/sup -1/) at 298/sup 0/K are 205.05 +- 0.8 for Ca/sub 3/Al/sub 2/O/sub 6/, 114.22 +- 0.8 for CaAl/sub 2/O/sub 4/, and 188.73 +- 0.8 for CaAl/sub 4/O/sub 7/. The excess enthalpy of mixing of CaO and AlO/sub 1/ /sub 5/ liquids has been calculated and plotted. Heats of fusion can be calculated from these values, but all the pure calcium aluminates melt incongruently.
- Research Organization:
- Montana State Univ., Bozeman
- DOE Contract Number:
- ET-78-C-01-3087
- OSTI ID:
- 5949810
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 85:19; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPOUNDS
ALUMINATES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BINARY MIXTURES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
DATA
DIAGRAMS
DISPERSIONS
ENTHALPY
ENTROPY
EXPERIMENTAL DATA
FLUIDS
INFORMATION
LIQUIDS
MEDIUM TEMPERATURE
MIXING
MIXTURES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHYSICAL PROPERTIES
SOLIDS
THERMODYNAMIC PROPERTIES
400201* -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPOUNDS
ALUMINATES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BINARY MIXTURES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
DATA
DIAGRAMS
DISPERSIONS
ENTHALPY
ENTROPY
EXPERIMENTAL DATA
FLUIDS
INFORMATION
LIQUIDS
MEDIUM TEMPERATURE
MIXING
MIXTURES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHYSICAL PROPERTIES
SOLIDS
THERMODYNAMIC PROPERTIES