Detection of Ammonium Ions

Introduction

• Ammonium Ions:
  • Typically found in colorless solutions.
  • Can be detected using a specific chemical test.

Sodium Hydroxide Test for Ammonium Ions

Materials Required

• Solution containing potential ammonium ions.
• Sodium hydroxide solution.
• Moist red litmus paper.
• Test tube.

Procedure

1. Prepare the Test Setup:

   • Ensure all materials are ready before beginning.
   • Have the red litmus paper ready for immediate use.

2. Conduct the Test:

   • Add an equal amount of sodium hydroxide solution to a small sample of your solution.
   • Heat the solution sample gently.
   • Constantly hold a moist red litmus paper over the mouth of the test tube as you heat.

3. Observation:

   • The red litmus paper will change color quickly upon exposure.
   • This color change indicates the successful presence of ammonium ions.

Conclusion

• The color change in the red litmus paper confirms the presence of ammonium ions in the sample solution.
• Ensure proper handling and safety precautions during the test.