1-butanethiol and 2-thiapentene. Experimental thermodynamic studies between 12 and 500/sup 0/K. Thermodynamic functions by a refined method of increments

Journal Article · Tue Mar 05 04:00:00 EST 1957 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja01562a015· OSTI ID:7319830

Scott, D W; Finke, H L; McCullough, J P; Messerly, J F; Pennington, R E; Hossenlopp, I A; Waddington, G

From experimental thermodynamic studies of 1-butanethiol and 2-thiapentane, values of the standard entropy, heat capacity and heat of formation of both substances in the vapor state were obtained. Thermodynamic functions between 0 and 1000/sup 0/K were computed by a refined method of increments. The method included application of empirical corrections based on the experimental values of entropy and heat capacity. Values of the heat, free energy and logarithm of the equilibrium constant of formation between 0 and 1000/sup 0/K also were computed. The experimental studies provided the following information for each substance: Values of the heat capacity for the solid (12/sup 0/K to the triple point), the liquid (triple point to 325/sup 0/K) and the vapor (360 to 500/sup 0/K); the triple point temperature; the heat of fusion; the entropy of the liquid at 298.16/sup 0/K; the heat of vaporization for pressures between /sup 1///sub 4/ and 1 atm; the second virial coefficient, B, in the equation of state, PV = RT(1 + B/V); the vapor pressure (for 1-butanethiol only); and the standard heat of formation.

• Research Organization: Bureau of Mines, Bartlesville, OK
• OSTI ID: 7319830
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 79:5; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ENERGY
ENTHALPY
ENTROPY
FLUIDS
FORMATION HEAT
FREE ENERGY
FUSION HEAT
GASES
HIGH TEMPERATURE
LIQUIDS
LOW TEMPERATURE
MEDIUM TEMPERATURE
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
REACTION HEAT
SOLIDS
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES
THIOLS
TRANSITION HEAT
ULTRALOW TEMPERATURE
VAPOR PRESSURE
VAPORIZATION HEAT
VAPORS
VERY LOW TEMPERATURE