Silver Nitrate Test

  • Acidify the sample with dilute nitric acid (HNO3) followed by the addition of silver nitrate solution (AgNO3).
  • If a halide is present it forms a silver halide precipitate:

Ag+(aq) + X(aq) → AgX(s)

  • Depending on the halide present, a different coloured precipitate is formed, allowing for identification of the halide ion.
  • Silver chloride is white, silver bromide is cream and silver iodide is yellow.

The-silver-halide-precipitates, IGCSE & GCSE Chemistry revision notes

Each silver halide produces a precipitate of a different colour

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Morgan Curtin Chemistry

Author: Morgan

Morgan’s passion for the Periodic Table begun on his 10th birthday when he received his first Chemistry set. After studying the subject at university he went on to become a fully fledged Chemistry teacher, and now works in an international school in Madrid! In his spare time he helps create our fantastic resources to help you ace your exams.