Abstract
The previously established recurrence equations A(n + 1) = aA(n) + b characterizing variations in the majority of physicochemical constants of organic compounds in homologous series and relating the properties of adjacent homologs with n + 1 and n carbon atoms are applicable in the modified form [Tm(n + 2) = aTm + b] to the melting points. This second-order recurrence is observed with a high accuracy, despite significant alternations in the melting points of even and odd homologs. The method for calculating melting points, based on this recurrence, has no analogs among the previously suggested methods and makes it possible, in particular, to reveal errors in reference data, originating in most cases from the low purity of the samples dealt with.
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