Speed of Sound, Density, and Derivative Properties of Tris(2-ethylhexyl) Trimellitate under High Pressure

Speed of sound measurements were carried out in liquid tris(2-ethylhexyl) trimellitate (TOTM) at pressures up to 200 MPa along isotherms ranging from (293.15 to 373.15) K in order to report data of density and its derivatives. The measurements were performed with a pulse echo technique working at 3 MHz. Additional density and heat capacity measurements were carried out at atmospheric pressure in order to initiate the estimation procedure of volumetric properties from speed of sound integration. Results were compared with density measurements performed with a U-tube densimeter at pressures up to 140 MPa on the same sample. Finally, an equation that correlates density and its derivatives within their estimated uncertainties is given.

[1]  Deepak Tapriyal,et al.  Viscosity Measurements of Two Potential Deepwater Viscosity Standard Reference Fluids at High Temperature and High Pressure , 2016 .

[2]  W. Wakeham,et al.  Tris(2-ethylhexyl) trimellitate (TOTM) as a potential industrial reference fluid for viscosity at high temperatures and high pressures: New viscosity, density and surface tension measurements , 2016 .

[3]  S. Bair.  The temperature and pressure dependence of viscosity and volume for two reference liquids , 2016 .

[4]  J. Fareleira,et al.  Tris (2-Ethylhexyl) trimellitate (TOTM) a potential reference fluid for high viscosity. Part II: Density measurements at temperatures from (293 to 373)K and pressures up to 68MPa , 2014 .

[5]  J. Fareleira,et al.  Tris(2-ethylhexyl) trimellitate (TOTM) a potential reference fluid for high viscosity. Part I: Viscosity measurements at temperatures from (303 to 373) K and pressures up to 65MPa, using a novel vibrating-wire instrument , 2014 .

[6]  J. Pauly,et al.  Heat capacity measurements of pure fatty acid methyl esters and biodiesels from 250 to 390 K , 2014 .

[7]  M. Paredes,et al.  Speed of Sound, Density, and Derivative Properties of Ethyl Myristate, Methyl Myristate, and Methyl Palmitate under High Pressure , 2013 .

[8]  S. Vance,et al.  Sound velocities and thermodynamic properties of water to 700 MPa and -10 to 100 degrees C. , 2010, The Journal of the Acoustical Society of America.

[9]  J. Segovia,et al.  Automated densimetric system: Measurements and uncertainties for compressed fluids , 2009 .

[10]  Jean-Patrick Bazile,et al.  Density of diethyl adipate using a new vibrating tube densimeter from (293.15 to 403.15) K and up to 140 MPa. calibration and measurements , 2008 .

[11]  W. Wagner,et al.  The IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use , 2002 .

[12]  J. Daridon,et al.  Pressure and Temperature Dependence of the Speed of Sound and Related Properties in Normal Octadecane and Nonadecane , 2000 .

[13]  J. Daridon,et al.  Speed of sound, density, and compressibilities of heavy synthetic cuts from ultrasonic measurements under pressure , 1998 .

[14]  W. Marczak,et al.  Water as a standard in the measurements of speed of sound in liquids , 1997 .

[15]  S. Biswas,et al.  The effect of pressure on the sound velocity and density of toluene and n-heptane up to 2600 bar , 1985 .

[16]  V. A. D. Grosso,et al.  Speed of Sound in Pure Water , 1972 .

[17]  W. D. Wilson.  Speed of Sound in Distilled Water as a Function of Temperature and Pressure , 1959 .