ABSTRACT

The saturated heat capacities of some linear alkylbenzenes (ethylbenzene, propylbenzene, butylbenzene, hexylbenzene, 1-phenylheptane, and 1-phenylhexadecane) and branched alkylbenzenes (m-xylene, cumene, (1-methylpropyl)benzene, (1,1-dimethylethyl)benzene, and (2-methylpropyl)benzene) in the temperature range from (332.15 to 401.15) K have been measured. A Calvet calorimeter C80D from Setaram (France) with batch cells modified from the standard vessels of Setaram, along with the "step by step method", has been used to perform the measurements. The estimated uncertainty of the saturated heat capacities was better than 0.5 % for the substances with higher purity and of the order of 1 % for the others. In the literature there exists csat(T) data for some of the liquids studied. Agreement with our measurements is within the range of the experimental uncertainties.

Compounds

#	Formula	Name
1	C8H10	ethylbenzene
2	C9H12	propylbenzene
3	C10H14	butylbenzene
4	C12H18	hexylbenzene
5	C13H20	heptylbenzene
6	C22H38	hexadecylbenzene
7	C8H10	1,3-dimethylbenzene
8	C9H12	isopropylbenzene
9	C10H14	(1-methylpropyl)benzene
10	C10H14	(1,1-dimethylethyl)benzene
11	C10H14	(2-methylpropyl)benzene

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	Phase	Method	#Points
POMD	1	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	7
POMD	2	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	7
POMD	3	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	8
POMD	4	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	8
POMD	5	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	8
POMD	6	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	8
POMD	7	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	8
POMD	8	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	8
POMD	9	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	8
POMD	10	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	8
POMD	11	Molar heat capacity at saturation pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Liquid Gas	Large sample (1 g) DSC	8

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Saturated Heat Capacities of Some Linear and Branched Alkylbenzenes between (332 and 401) K

Paramo, R.[Ricardo], Zouine, M.[Mohammed], Sobron, F.[Francisco], Casanova, C.[Carlos]

ABSTRACT