Title: Silver Subfluoride
CAS Registry Number: 1302-01-8
Synonyms: Disilver fluoride
Molecular Formula: Ag2F
Molecular Weight: 234.73
Percent Composition: Ag 91.91%, F 8.09%
Literature References: Prepd by electrolytic reduction of argentous fluoride, AgF: Hettich,
Z. Anorg. Allg. Chem. 167, 67 (1927); Scholder, Traulsen,
ibid. 197, 57 (1931). By the reaction of elemental silver with argentous fluoride at 50-90°: Güntz,
Compt. Rend. 110, 1337 (1890);
112, 861 (1891); Poyer
et al., Inorg. Synth. 5, 18 (1957).
Properties: Hexagonal, bronze-colored crystals with green luster, d 8.57. Turns grayish-black on prolonged exposure to air. Thermal decompn to Ag and AgF begins at 100° and is complete at 200°. Good electrical conductor. On contact with water almost instant hydrolysis with precipitation of Ag powder. Apparently stable to abs ethanol; insensitive to light. When dry may be kept in a stoppered container for weeks without evidence of decompn.
Density: d 8.57
Status: This monograph has been retired and is no longer subject to revision or update.
