Solid state dehydration of the hydrated Ca(II), Co(II), Ni(II) and Cu(II) salts of furan-2-carboxylic acid (furoic acid) and subsequent decarboxylation of the corresponding anhydrous salts have been studied by simultaneous TG, DTA and DTG techniques. The order of thermal stability of the hydrated and the anhydrous compounds have been determined from the analysis of the TG, DTA and DTG traces for the dehydration of the hydrated salts and for the decarboxylation of the anhydrous compounds. Thermal parameters such as activation energy, enthalpy change and order of reaction for the different stages of each process have been computed by standard methods. An attempt has been made to account for the observed trend in the thermal stability of the anhydrous salts towards decarboxylation. A mechanism of thermal decarboxylation of calcium furoate has also been proposed.