Thermal decomposition of Bi(III), Cd(II), Pb(II) and Cu(II) thiocyanates

Thermal decomposition of Bi(SCN)(3), Cd(SCN)(2), Pb(SCN)(2) and Cu(SCN)(2) has been studied. The thermal analysis curves and the diffraction patterns of the solid intermediate and final products of the pyrolysis are presented. The gaseous products of the decomposition (SO2 and CO2) were detected and quantitatively determined. Thermal, X-ray and chemical analyses have been used to establish the nature of the reactions occurring at each stage in the decomposition.