Thermodynamic properties of sesquiterpene lactone grossheimin


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The enthalpy of dissolution of sesquiterpene lactone grossheimin C15H18O4 is measured using a DAK-I-IA calorimeter at a lactone/ethanol (96%) molar ratios equal to 1 : 18000, 1 : 36000, and 1 : 72000. The standard enthalpy of dissolution of grossheimin in a 96% ethanol solution is calculated based on the resulting data. The temperature dependence of the heat capacity of grossheimin Cp°f (T) is studied by means of dynamic calorimetry using a IT-C-400 device in the temperature range of 298.15–423 K. An equation describing this dependence is derived. The standard enthalpies of combustion, melting, and formation of grossheimin are calculated using approximate methods.

Sobre autores

Sh. Kasenova

Abishev Chemical and Metallurgical Institute

Autor responsável pela correspondência
Email: kasenov1946@mail.ru
Cazaquistão, Karaganda, 100009

G. Atazhanova

Fitokhimiya International Research and Production Holding

Email: kasenov1946@mail.ru
Cazaquistão, Karaganda, 100009

Zh. Sagintaeva

Abishev Chemical and Metallurgical Institute

Email: kasenov1946@mail.ru
Cazaquistão, Karaganda, 100009

B. Kasenov

Abishev Chemical and Metallurgical Institute

Email: kasenov1946@mail.ru
Cazaquistão, Karaganda, 100009

A. Kishkentaeva

Fitokhimiya International Research and Production Holding

Email: kasenov1946@mail.ru
Cazaquistão, Karaganda, 100009

S. Adekenov

Fitokhimiya International Research and Production Holding

Email: kasenov1946@mail.ru
Cazaquistão, Karaganda, 100009

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