Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Capillary constant and surface tension of dimethyl ether and n-butane at temperatures from 214 K to those close to the critical point

Baidakov, V. G.[Vladimir G.], Grishina, K. A.[Ksenia A.], Kaverin, A. M.[Aleksey M.]
Fluid Phase Equilib. 2016, 414, 55-59
ABSTRACT
The capillary constant a2 has been measured by the differential capillary-rise technique and the surface tension of dimethyl ether and n-butane has been determined with the use of data on the densities of saturated liquid and gas. The experiments with dimethyl ether were performed at temperatures from 214 K to 390 K, for n-butane from 278.15 K to 423.04 K. Equations that approximate the temperature dependences of the capillary constant and surface tension have been suggested.
Compounds
# Formula Name
1 C2H6O dimethyl ether
2 C4H10 butane
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
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Air at 1 atmosphere
  • Capillary rise
  • 35
  • POMD
  • 2
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Air at 1 atmosphere
  • Capillary rise
  • 38