The Enthalpies of Combustion and Formation of 2,2'-Dichloroethyl Sulfide.

Abstract

The enthalpies of combustion and formation of 2,2'-dichlorethyl sulfìde (mustard gas) have been determined by combustion in an adiabatic rotating-bomb calorimeter. The bomb process has been corrected to: ${\text{C}}_4{\text{H}}_8{\text{Cl}}_2\text{S}\left(\text{liq}\right)+7{\text{O}}_2\left(\text{g}\right)+98{\text{H}}_2\text{O}\left(\text{liq}\right)\to 4{\text{CO}}_2\left(\text{g}\right)+\left[2\text{HCl}+{\text{H}}_2{\text{SO}}_4+100{\text{H}}_2\text{O}\right]\left(\text{liq}\right)$ for which the following values were obtained: $\text{Δ}H{c}^{°}\left(25{}^{°}\text{C}\right)=-3163.49\pm 1.26\text{kJ}/\text{mol}\text{and}$ $\text{Δ}H{f}^{°}\left(25{}^{°}\text{C}\right)=-200.57\pm 1.58\text{kJ}/\text{mol}.$.