Vaporization enthalpy of silanes fluids: A new correlation based on the corresponding states principle

Abstract

A new and simple correlation based on the corresponding-states principle is proposed for the relation of the vaporization enthalpy with the temperature for saturated silanes. The primary accepted data for 7 silanes obtained from the most recent version of the DIPPR database are used as reference to define the model. Then predictions are made for other 29 silanes and compared with DIPPR data. The proposed correlation reproduces these data with average absolute deviations (AAD) lower than 1% for 8 silanes, AAD<5% for 30 fluids and AAD<10% for 35. The predictive power of the model is also checked by considering vaporization enthalpy data available for other 9 silanes not included in DIPPR. In this case, the mean AAD is 2%. Comparison with other previously published corresponding-states correlations is made, the here proposed being simpler, accurate, and predictive.