ELECTRICAL-PROPERTIES OF MAGNESIUM SODIUM-HYDROGEN MONOPHOSPHATE - MGNA3H(PO4)(2)

Magnesium sodium hydrogen monophosphate, Na3MgH(PO4)(2), crystallizes in the triclinic cell P (1) over bar. The crystal morphology is relate d to the synthesis temperature and the evaporation rate. Samples were characterized through X-ray diffraction and chemical analysis, examine d by IR and Raman vibrational spectroscopy and impedance and modulus s pectroscopy techniques. The conductivity relaxation parameters associa ted with some H+ conduction have been determined from an analysis of t he M''/M''(max) spectrum measured in a wide temperature range. Transpo rt properties in this material appear to be due to an H+ ion hopping m echanism.