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AgCl Silver Chloride – Molar Mass, Uses and Properties

What is AgCl?

agcl structure

AgCl is the chemical formula for Silver Chloride that occurs in white crystalline form. The compound has no odor and occurs naturally as a mineral called chlorargyrite. It is well known for its low solubility in water. This compound can be synthesized using the aqueous solution Silver Nitrate ( AgNO3) and Sodium Chloride or Cobalt Chloride. AgCl immediately disintegrates into Ag and Cl upon exposure to light, and this is why it is used in making photographic papers. 

Properties of Silver Chloride

Chemical formula AgCl
Molecular weight/ Molar Mass of AgCl 143.32 g/mol
Color/Appearance of AgCl White powder
State Solid
Boiling point of AgCl 1547° C
Melting point of AgCl 455° C
Density 5.56 g/cm3
Solubility Insoluble in water

Silver Chloride Uses

  • AgCl is widely used as an antimicrobial agent in deodorants and in the preservation of drinking water in tanks.
  • It is also used in making photographic paper and photochromic lenses.
  • This compound is also used for electroplating and polishing.
  • Silver chloride is also used as an antidote for mercury poisoning as it can help with eliminating mercury.
  • It is also used as a component in making alloys.

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