Calcium Antimonate, CaSb₂O₆.6H₂O

Calcium Antimonate, CaSb₂O₆.6H₂O, is obtained as a white amorphous precipitate by the action of an alkali antimonate on calcium chloride solution, or of antimonic acid on calcium acetate.

A yellow, noncrystalline calcium thioantimonate of uncertain formula has been described, and also a chlorantimonate, Ca(SbCl₆)₂.9H₂O, crystallising in very long hygroscopic needles.