ABSTRACT

Isobaric specific heat capacities for the binary mixtures {isomer of butanediol + methanol} were measured using a differential scanning calorimeter. The isobaric molar heat capacities were determined in the temperature range from (293 to 324) K. The excess molar isobaric heat capacities of mixtures and its components were calculated. The composition dependencies of the excess molar isobaric heat capacities at T = 298.15 K and at T = 323.15 K were fitted by the Redlich Kister polynomials. The obtained results were analyzed from point of view of the influence of distance of -OH groups in butanediol molecule.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C4H10O2	1,2-butanediol
3	C4H10O2	1,3-butanediol
4	C4H10O2	1,4-butanediol
5	C4H10O2	2,3-butanediol

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	1 2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	91
POMD	1 3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	91
POMD	1 4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	91
POMD	1 5	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	105

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Molar heat capacities for {isomer of butanediol + methanol} as function of mixture composition and temperature

Pietrzak, A., Piekarski, H.

ABSTRACT