Аннотация:Standard enthalpy of chernyite (Cu2CdSnS4) formation have been from calorimetric measurements of reaction 2CuS + CdS + SnS → Cu2CdSnS4 enthalpy (reaction of chernyite formation from synthetic sulfides).The measurements were carried on with vacuum-blocked calorimeter. As a result, using literature data for the binary sulfides the standard enthalpy of chernyite formation from the elements were obtained ∆fH0298.15(Cu2CdSnS4) = -(432.7 ±4.56) kJ·mol-1.