Ammonium Stannifluoride, (NH₄)₂SnF₆

Ammonium Stannifluoride, (NH₄)₂SnF₆, was obtained by Marignac by decomposing the lead or silver salt with ammonium chloride or sulphate. It crystallises in rhombohedra. The salt (NH₄)₂SnF₆.2NH₄F has also been described. Stannifluorides of barium, strontium, calcium, magnesium, lead, manganese, zinc, cadmium, nickel, copper, and silver were also prepared by Marignac.