Physical properties and phase transitions in sodium tartrate dihydrate
We report here on the electrical properties (resistance, dielectric constant and pyroelectric current behaviour), magnetic susceptibilityXM and differential thermal analysis (DTA) for the polycrystalline powdered samples of sodium tartrate dihydrate (STD), Na2C4H4O6·2H2O. These mentioned properties are used as a probe for the detection and the studying of the different transitions that have been found in this salt. It has been observed that the various results (electric, magnetic and thermal) strongly support each other and confirm the actual presence of the phase transformations in this compound.