Triglycine Sulphate (TGS) is one of the best ferroelectric material. It finds wide application as pyroelectric detector, single crystal of Triglycine Sulphate was grown from the aqueous solutions by slow evaporation technique. The Thermogravimetric analysis (TGA) and Differential thermal analysis (DTA) were made ,debye temperature of the grown crystals were determined from the melting point and the activation energy was calculated from the mass change , the value of activation energy thus calculated from the mass change well agreed with the reported value.
