solutions containing ammonium ions and usually colorless successful presence of ammonium ions we may employ the sodium hydroxide test for this test would require a bunch of play and attest you to contain your solution we will also need a moist red litmus paper in travail you have everything necessary before you begin the test to a small sample solution add an equal amount of sodium hydroxide solution as soon as you have added the sodium hydroxide solution heat a solution sample as you heat the solution sample were constantly immediately hold a moist read the newspaper over the mouth for a test you we'll notice the red litmus paper changes color almost immediately the car change is wrongly