ABSTRACT

The densities and speeds of sound of five fatty acid methyl esters (FAMEs) were measured at approximately 83 kPa (atmospheric pressure in Boulder, CO) at temperatures from (278.15 to 338.15) K. The FAMEs measured were the five primary components of biodiesel fuel, namely, methyl palmitate, methyl stearate, methyl oleate, methyl linoleate, and methyl linolenate. The densities and speeds of sound were measured concurrently with a commercial instrument equipped with a vibrating U-tube densimeter and pulse-echo speed of sound measurement cell. The densities of the FAMEs agreed with and expanded upon limited available literature values. The speed of sound measurements provide much needed experimental data for equation of state development.

Compounds

#	Formula	Name
1	C17H34O2	methyl hexadecanoate
2	C19H38O2	methyl octadecanoate
3	C19H36O2	methyl cis-9-octadecenoate
4	C19H34O2	methyl (Z,Z)-9,12-octadecadienate
5	C19H32O2	methyl (Z,Z,Z)-9,12,15-octadecatrienoate

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	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pulse-echo method	7
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pulse-echo method	5
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	5
POMD	3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pulse-echo method	7
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	4	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pulse-echo method	7
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	5	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pulse-echo method	7
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7

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

Density and Speed of Sound Measurements on Five Fatty Acid Methyl Esters at 83 kPa and Temperatures from (278.15 to 338.15) K

Ott, L. S.[Lisa S.], Huber, M. L.[Marcia L.], Bruno, T. J.[Thomas J.]

ABSTRACT