Halide Test (Activity 5)

• What is the first step for the Halide test?

  Pour around 1cm depth of the Sodium Salts
• What is the second step for the Halide test?

  Add a few drops of dilute nitric acid and 1cm depth of silver nitrate solution
• What is the final step of the Halide test?

  Record your observations.
• What are the sodium salts tested?

  Sodium carbonate

  Sodium sulphate

  Sodium chloride

  Sodium bromide

  Sodium iodide
• What is the result for the Carbonate?

  White precipitate
• What is the result for the Sulphate?

  No result
• What is the result for the Chloride?

  White precipitate (Silver chloride)
• What is the result for the Bromide?

  Cream precipitate (Silver bromide)
• What is the result for the Iodide?

  Yellow precipitate (Silver iodide)
• Why will you need to use the carbonate test with the halide test?

  The carbonate and the chloride both give a white precipitate, so one will need to be ruled off.