The thermodynamic properties of thianthrene and phenoxathiin
Measurements leading to the calculation of the ideal-gas thermodynamic properties are reported for thianthrene (Chemical Abstracts registry number [92-85-3]) and phenoxathiin (registry number [262-20-41]). Experimental methods included combustion calorimetry, adiabatic heat-capacity calorimetry, vibrating-tube densitometry, comparative ebulliometry, inclined-piston gauge manometry, and differential-scanning calorimetry (d.s.c.). Critical properties were estimated for both materials based on the measurement results. Entropies, enthalpies, and Gibbs energies of formation were derived for the ideal gas for both compounds for selected temperatures between 298.15 K and 700 K. The property-measurement results reported here for thianthrene and phenoxathiin provide the first experimental gas-phase Gibbs energies of formation for tricyclic diheteroatom-containing molecules.
- Research Organization:
- National Inst. for Petroleum and Energy Research, Bartlesville, OK (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 6673493
- Report Number(s):
- NIPER-659; ON: DE93000124
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400 -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CALORIMETRY
CHEMICAL REACTIONS
DATA
DENSIMETERS
DESULFURIZATION
ENERGY
ENERGY SOURCES
ENTHALPY
ENTROPY
EXPERIMENTAL DATA
FOSSIL FUELS
FREE ENTHALPY
FUELS
HETEROCYCLIC COMPOUNDS
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
PHYSICAL PROPERTIES
POLYCYCLIC SULFUR HETEROCYCLES
SPECIFIC HEAT
TEMPERATURE RANGE
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
THERMODYNAMIC PROPERTIES