ABSTRACT

The phenomenon of retrograde melting is investigated. A temperature minimum on the solid liquid boundary of a constant composition mixture is a necessary condition for the phenomenon to occur. In this work, the criteria for the existence of the retrograde melting phenomena are analysed in terms of volumetric and enthalpic properties of the coexisting phases on the basis of the Gibbs Konovalow equations. The thermodynamic analysis is supported by new experimental results for the system propane + tetracontane and literature data.

Compounds

#	Formula	Name
1	C20H42	eicosane
2	C40H82	tetracontane
3	C2H4	ethene
4	C3H8	propane

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	3 1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas Crystal - 1	Closed cell (Static) method	6
POMD	3 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	18
POMD	3 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Liquid Crystal - 1	VISOBS	19
POMD	4 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 2; Liquid Pressure, kPa; Liquid	Liquid Crystal - 2	VISOBS	67

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase behaviour in the vicinity of the three-phase solid liquid vapour line in asymmetric nonpolar systems at high pressures

Gregorowicz, J.[Jacek]

ABSTRACT