Kinetics of Thermal Decomposition of Thiourea

Thermal decomposition of thiourea in a melt was studied by isothermal and nonisothermal kinetic methods. The influence of the gas flow rate over the melt, layer thickness, and other factors on the process was elucidated. The kinetic parameters of the steps of formation of guanidinium thiocyanate and solid cyclic compounds, products of thiourea thermolysis, were determined.