Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Infinite dilution activity coefficient measurements by inert gas stripping method

Haimi, P.[Piia], Uusi-Kyyny, P.[Petri], Pokki, J. -P.[Juha-Pekka], Aittamaa, J.[Juhani], Keskinen, K. I.[Kari I.]
Fluid Phase Equilib. 2006, 243, 1-2, 126-132
ABSTRACT
The values of activity coefficients at infinite dilution ( A ) are of especially significance in the reliable design of thermal separation processes producing pure compounds. The A has been determined for six branched ethers and four sulfur compounds in water using the dilutor technique. The measurements were carried out in the temperature range from 288 to 333 K.
Compounds
# Formula Name
1 C7H8 toluene
2 C6H14O 2-ethoxy-2-methylpropane
3 C5H12O 2-methoxy-2-methylpropane
4 C7H16O 1,1-dimethylpropyl ethyl ether
5 C6H14O 2-methoxy-2-methylbutane
6 C9H20O methyl 1,1,3,3-tetramethylbutyl ether
7 C10H22O ethyl 1,1,3,3-tetramethylbutyl ether
8 C4H4S thiophene
9 C4H10S 1-butanethiol
10 C3H8S 1-propanethiol
11 C3H8S 2-propanethiol
12 H2O water
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
  • 5
  • 12
  • Activity coefficient - 5 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 5; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 4
  • POMD
  • 12
  • 6
  • Activity coefficient - 6 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 6; Liquid
  • Liquid
  • Chromatography
  • 10
  • POMD
  • 12
  • 7
  • Activity coefficient - 7 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 7; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 5
  • POMD
  • 8
  • 12
  • Activity coefficient - 8 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 8; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 5
  • POMD
  • 9
  • 12
  • Activity coefficient - 9 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 9; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 5
  • POMD
  • 10
  • 12
  • Activity coefficient - 10 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 10; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 5
  • POMD
  • 11
  • 12
  • Activity coefficient - 11 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 11; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 4
  • POMD
  • 1
  • 12
  • Activity coefficient - 1 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 4
  • POMD
  • 2
  • 12
  • Activity coefficient - 2 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 4
  • POMD
  • 3
  • 12
  • Activity coefficient - 3 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 4
  • POMD
  • 4
  • 12
  • Activity coefficient - 4 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Chromatography
  • 4