Thermogravimetric analysis (TGA) and differential thermal analysis (DTA) have been employed in the present work to investigate thermal stability, stoichiometry and cleavage patterns of the chelates of 2-hydroxy-4-aminobenzoic acid (sodium salt) with group IB, IIB metals and Ni. The decomposition patterns revealed interesting information about bonding situations and thermodynamic values of the complexes.


C M ASHRAF ,B KHAN ,M Z IQBAL ,