The single crystals of Strontium doped Barium tartrate crystals were grown by Single diffusion technique, in silica gel at room temperature. Effect of Strontium doping on the Barium tartarate has been studied. The XRD pattern shows that Strontium barium tartarate crystals are polycrystalline, having orthorhombic structure. SEM pictures reveals that crystals are grown by layer deposition. The thermal stability was studied by the TGA and DSC.