White powder, m.p. 1400℃, relative density 2.802 g/cm³, soluble in caustic alkali solutions, insoluble in water, ethanol, benzene, acetone and dilute acids, extremely stable. Used as catalyst for organic synthesis, heat-stable pigment, ceramic material, coating, petroleum additive, preservative and acid purifier; raw material for sodium borohydride, its hydrate used as fertiliser. 25 kg PE-lined woven bags.
