CALCULATION OF CRITICAL-TEMPERATURES FROM THE NUMBER OF CARBONS IN ORGANIC-MOLECULES

The linearity of homolog critical temperatures (Tc,K) with the logarithms of chain length (the latter represented by molecular weight, M, or number of carbons, Nc) was used to develop simple equations correlating Tc,K with M (or with Nc+k) for 40 homologous series. Critical temperatures defined by the equations are presumed to be correct, whereas those in substantial disagreement are considered wrong. The equations can be used to estimate many new critical temperatures by interpolation or by prudent extrapolation. © 1990 AOCS Press.