Collect. Czech. Chem. Commun. 1994, 59, 1483-1494

Estimation of Critical Properties from the Number of Carbon Atoms in Homologous Series

Bohumír Koutek, Michal Hoskovec and Josef Lazar

Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 166 10 Prague 6, Czech Republic


Equations correlating the normal boiling points (TB), critical temperatures (TC) and critical pressures (PC) with the respective carbon numbers (n) were developed for the straight-chain homologous series H-(CH2)n-Y, where Y denotes CH3, OH, CH=O, OCOCH3 and COOH and n varies from 5 to 18. The estimates based on these equations were found to reproduce experimental data within the average errors less than 0.27% for TB and TC, and 1.45% for PC thus allowing a prediction of new data.