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.
Each silver halide produces a precipitate of a different colour
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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.