ABSTRACT

There is an industrial requirement for a suitable reference material for viscosity measurements in the moderate to high viscosity region. Diisodecyl phthalate (DIDP) has been put forward as a candidate for this purpose. The field of elastohydrodynamics has a similar need for a reference lubricant that would allow the comparison of calculated contact behavior with experimental measurements. We report measurements of the viscosity of DIDP at atmospheric pressure between (0 and 100) deg C and at high pressures to 1 GPa between (20 and 100) deg C using three different falling body viscometers and samples from two different manufacturers. Densities obtained with a vibrating-tube densimeter are reported between (0 and 90) deg C at atmospheric pressure.

Compounds

#	Formula	Name
1	C28H46O4	3-methylnonyl 1,2-benzenedioate

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	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	16
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:4	13
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	42
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:2	15
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Falling or rolling sphere viscometry	42
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Falling or rolling sphere viscometry	54
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Falling or rolling sphere viscometry	41

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

Temperature and Pressure Dependence of the Viscosity of Diisodecyl Phthalate at Temperatures between (0 and 100) deg C and at Pressures to 1 GPa

Harris, K. R.[Kenneth R.], Bair, S.[Scott]

ABSTRACT