Title: Silver Chloride

CAS Registry Number: 7783-90-6

Molecular Formula: AgCl

Molecular Weight: 143.32

Percent Composition: Ag 75.26%, Cl 24.74%

Properties: White powder; darkens on exposure to light. d 5.56; mp 455°; bp 1550°. Soly in water (25°): 1.93 mg/l; hydrochloric acid increases its soly. Sol in 250 parts of concd HCl, in 13 parts of 10% ammonia; more sol in stronger ammonia and also at higher temps. Sol in solns of alkali cyanides, thiosulfates, ammonium carbonates; appreciably sol in concd aq solns of ammonium chloride; mercuric nitrate, and silver nitrate. The freshly pptd chloride dissolves more readily than the dried precipitate. Insol in alcohol, or dil acids. Protect from light.

Melting point: mp 455°

Boiling point: bp 1550°

Density: d 5.56

Use: In silver plating, in making antiseptic silver prepns.