sodium iodide and potassium nitrate

Adding very pale yellow sodium iodide to colorless potassium nitrate results in no reaction, no precipitate and a nearly colorless solution.

Solution A: 0.5 M sodium iodide (very pale yellow)
Solution B: 0.2 M potassium nitrate (colorless)
Precipitate: none. Resulting solution: (nearly colorless)
KNO₃(aq) + NaI(aq) --> No Reaction

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© 1997 Division of Chemical Education, Inc., American Chemical Society. All rights reserved.