Ev. Murashova et Nn. Chudinova, SYNTHESIS OF SODIUM MANGANESE POLYPHOSPHATE IN MOLTEN POLYPHOSPHORIC ACIDS, Inorganic materials, 32(11), 1996, pp. 1211-1212
The polyphosphate NaMn(PO3)(3) (orthorhombic cell; a = 14.406(4) Angst
rom, b = 14.406(5) Angstrom, c = 14.408(5) Angstrom; sp. gr. P2(1)2(1)
2(1)) was synthesized in molten polyphosphoric acids at 350 degrees C.