Cobaltous Phosphate
Title: Cobaltous Phosphate
CAS Registry Number: 13455-36-2
Additional Names: C.I. Pigment Violet 14; C.I. 77360
Molecular Formula: Co3O8P2
Molecular Weight: 366.74
Percent Composition: Co 48.21%, O 34.90%, P 16.89%
Line Formula: Co3(PO4)2
Literature References: Prepn from CoCl2 and (NH4)2HPO4: Klement, Haselbeck, Z. Anorg. Allg. Chem. 334, 27 (1964); from Ca(H2PO4)2: Vickery, US 2914380 (1959 to Horizons). Review: de Bie, Doyen, Cobalt 15, 3-13; 16, 3-15 (1962). See also Colour Index vol. 4 (3rd ed., 1971) p 4665.
Derivative Type: Octahydrate
Properties: Pink to lavender amorph powder. d 2.77. Practically insol in water; sol in mineral acids.
Density: d 2.77
Use: In ceramic pigments; in artists' colors, plastic resins.

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