Developments in Calculation of Acentric Factor

The paper analyses the methods of determination and acquire of acentric factor(ω)data, basing on the definition of acentric factor. The recent research progress of the calculating method of acentric factor was reviewed, including vapor pressure equation of corresponding state method, corresponding state group contribution (CSGC) method, Graph Theory and Molecular Topology Method, and their advantages and disadvantages, as well as the latest trend were also discussed.