Measurements of the vapor-liquid coexistence curve near the critical point for 2-methylpropane (isobutane; R600a) were carried out in the reduced temperature range of 0.957 < T/Tc < 1 and in the reduced density range of 0.40 < F/Fc < 1.70, and the critical temperature Tc and critical density Fc were determined. The critical pressure Pc was calculated by extrapolating reliable vapor-pressure data in the vicinity of the critical point. The critical parameters determined are Tc ) (407.795 ( 0.010) K, Fc ) (229 ( 2) kgam-3, Vc ) (253.8 ( 2.2) cm3amol-1, and Pc ) (3628.2 ( 1.4) kPa. In addition, the critical exponent a along the coexistence curve is discussed.
Compounds
#
Formula
Name
1
C4H10
2-methylpropane
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.