Abstract

In a calorimeter with a static bomb and an isothermal shield the energy of combustion of the cyanocobalamin has been measured at 298 15 K Physico-chemical methods established the products of combustion of cyanocobalamin in the conditions of calorimetric experiment The enthalpy of combustion cH and the thermodynamic parameters fH fG of the cyanocobalamin at T 298 15 K and p 0 1 MPa have been calculated Thermodynamic parameters fH fS were determined and used to calculate the enthalpy of formation of cyanocobalamin