Thermodynamics Research Center / ThermoML | International Journal of Thermophysics

Speeds of Sound and Isentropic Compressibilities of n-Alkoxyethanols and Polyethers with Propylamine at 298.15K

Pal, A.[Amalendu], Kumar, A.[Anil], Kumar, H.[Harsh]
Int. J. Thermophys. 2006, 27, 3, 777-793
ABSTRACT
The speeds of sound (u) have been measured at 298.15K and atmospheric pressure, as a function of composition for seven binary liquid mixtures of propylamine (CH3CH2CH2NH2, PA)+ethylene glycol monomethyl ether (2- methoxyethenol, CH3(OC2H4)OH, EGMME);+diethylene glycol monomethyl ether [{2-(2-methoxyethoxy)ethanol}, CH3 (OC2H4)2OH, Di-EGMME];+triethylene glycol monomethyl ether [{2-(2-(2-methoxyethoxy)ethoxy) ethanol}, CH3(OC2H4)3OH, Tri-EGMME];+diethylene glycol monoethyl ether [2- (2-ethoxyethoxy)ethanol, C2H5(OC2H4)2OH, Di-EGMEE];+diethylene glycol monobutyl ether [{2-(2-butoxyethoxy) ethanol}, C4H9(OC2H4)2OH, Di-EGMBE];+ diethylene glycol diethyl ether [bis(2-ethoxyethyl)ether, C2H5(OC2H4)2 OC2H5, DEGDEE]; and+diethylene glycol dibutyl ether [bis(2-butoxyethyl) ether, C4H9(OC2H4)2OC4H9; DEGDBE] using a Nusonic velocimeter based on the sing around technique. These values have been combined with densities derived from excess molar volumes to obtain estimates of the molar isentropic compressibility KS,m, and their excess values KE S,m. The KE S,m values are shown to be negative for all mixtures over the entire composition range. The deviations uD of the speeds of sound from the values calculated for ideal mixtures have been obtained for all estimated values of mole fraction x1. The change of KE S,m and uD with composition and the number of OC2H4 units in the alkoxyethanol are discussed with a view to understand some of the molecular interactions present in alkoxyethanol propylamine mixtures. Also, theoretical values of the molar isentropic compressibility of KS,m and of the speed of sound uD have been calculated using the Prigogine- Flory-Patterson (PFP) theory with the van der Waals (vdW) potential energy model, and the results have been compared with experimental values.
Compounds
# Formula Name
1 C3H9N propan-1-amine
2 C3H8O2 2-methoxyethan-1-ol
3 C5H12O3 2-(2-methoxyethoxy)ethanol
4 C7H16O4 2-[2-(2-methoxyethoxy)ethoxy]ethanol
5 C6H14O3 3,6-dioxa-1-octanol
6 C8H18O3 3,6-dioxa-1-decanol
7 C8H18O3 diethylene glycol diethyl ether
8 C12H26O3 5,8,11-trioxapentadecane
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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 1
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 2
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 3
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 1
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 4
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 1
  • POMD
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 5
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 1
  • POMD
  • 6
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 6
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 1
  • POMD
  • 7
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 7
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 1
  • POMD
  • 8
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 8
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 1
  • POMD
  • 1
  • 2
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 27
  • POMD
  • 1
  • 3
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 25
  • POMD
  • 1
  • 4
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 25
  • POMD
  • 1
  • 5
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 5; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 26
  • POMD
  • 1
  • 6
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 6; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 25
  • POMD
  • 1
  • 7
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 7; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 27
  • POMD
  • 1
  • 8
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 8; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 25