Аңдатпа
The method of isothermal calorimetry at dilutions (moles salt/moles water) of 1:9000, 1:18000, and 1:36000 was applied to study the heats of solution of methyl iodides of dimethyl-and diethylamino grosshemin. The data obtained were used to calculate the standard enthalpies of solution of C 18 H 28 O 4 NI and C 20 H 32 O 4 NI in an infinitely diluted (standard) aqueous solution. The heats of combustion and melting of C 18 H 28 O 4 NI and C 20 H 32 O 4 NI were estimated. The experimental and calculational techniques were combined to calculate the standard heats of formation of methyl iodides of dimethyl-and diethylamino grosshemin and their 66 analogues.