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  Occurrence and principles of extraction of silver

Occurrence and principles of extraction of silver:

Atomic mass: 108         Valency: 1
Atomic number: 47       Symbol: Ag

Location in the periodic table: Period Number -5, Group Number -11.

Occurrence:

Silver takes place both in the native and also in the combined state.

Ores:

The significant ores of silver are:

1) Argentite or silver glance, Ag2S
2) Horn silver or chlorargyrite, AgCl
3) Ruby silver, Pyrargyrite or Ag2S. Sb2S3

The main ore of silver is Argentite. The silver content in these ores is too small (around1%). Silver acquired to a small extent from gold ores.

Uses of silver:

1) Silver salts are utilized in silvering of mirrors
2) AgBr is utilized in photography
3) Silver salts are utilized in silver plating.
4) Silver is utilized in making electrodes.
5) Silver leaf is utilized in medicine, while silver amalgam is employed in dental filling.

 

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