Kinetic parameters from thermogravimetric analysis of Mn(II) complex with 5-amino-1,2,3,4-thiatriazole.

U.N.Verma*, Supriya kumari and Vaishali Anand
Page No. 14-19

Thermogravimetric analysis is a continuous non-isothermal method which has many advantages
over currently used isothermal methods. Thermal analysis technique is becoming useful tool in
different field of study such as chemical science, polymer science, biological science, medical
science1-8. Transition metal complexes have been used as antifungal9, antibacterial10, antitumour11,
antiviral12, hypotensive13. The thermal kinetics and decomposition products of the complex are
apparently of significance in understanding the biochemistry of the compound.
The basis of the calculations of the kinetic data from a T.G curve is based on the formal kinetic
equation -dx/dt = kxn where x is the amount of sample undergoing reaction ,n is the order of
reaction and k is specific reaction rate constant and the latter’s dependence of temperature and is
expressed as k=A e-E/RT.
In this paper kinetics of thermal decomposition of complex of Mn(II) with 5-amino-1,2,3,4-
thiatriazole has been investigated and the kinetic parameters computed using graphical method of
Freeman-Carroll14 and Doyles15method as modified by Zsako1