Silver Chloride

Name:
Silver Chloride
Detailed information:

M Formula:	AgCl
Properties:
White, granular powder; darkens on exposure to light, finally turning black. Exists in several modifications differing in behavior toward light and in their solubility in various solvents. D 5.56, mp 445C, bp 1550C. Soluble in ammonium hydroxide, concentrated sulfuric acid and sodium thiosulfate and potassium bromide solutions; very slightly soluble in water. Can be melted, cast, and fabricated like a metal.
Derivation:
Silver nitrate solution is heated and hydrochloric acid or salt solution added. The whole is boiled, then filtered, all in the dark or under a ruby-red light.
Method of Purification:
Resolution in ammonium hydroxide and precipitation by hydrochloric acid.
Grade:
Technical; CP; single, pure crystals.
Hazard:
As for silver.
Use:
Photography, photometry and optics, batteries, photochromic glass, silver plating, production of pure silver, antiseptic. Single crystals are used for infrared absorption cells and lens elements, lab reagent.