even without participation of oxygen (air). Such substances normally have heats of decomposition, as measured with differential scanning calorimetry (DSC), equal or higher than 300 J/g. Also cyanamide shows an exothermal heat (DSC) of about 1360 J/g but this is owing to the dimerization/trimerization. Cyanamide as well as aqueous solutions of it therefore should not be assigned to the group of self-reactive substances according to the transport regulations.