Abstract: Heats of formation (AHf) of tertiary alkyl chlorides may be calculated from measurements of the heats of hydrochlorination of appropriate olefins at-50 OC in CH2C12. Since many good values for heats of formation of the olefins have been published, the heats of hydrochlorination lead directly to Afff for the chlorides, for which few previous values are available. The new data, when combined with previously reported heats of ionization for ...