======Production of Ammonia Gas======


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**Alternative titles:** Making Ammonia
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====Summary====                   
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====Procedure====  
  - Prepare a mixture of ammonium chloride and dry-slaked lime (calcium hydroxide) in a 3:1 ratio in a round-bottom flask. Some methods suggest adding a small amount of water.  
  - Clamp the flask in a slightly inclined position as shown in the apparatus diagram.  
  - Connect the flask to a delivery tube that leads to a gas-collecting jar.  
  - Heat the flask gently to initiate the reaction.  
  - Allow the ammonia gas produced to pass into the jar, where it is collected by downward displacement of air.



====Links==== 

📄 Ammonia Fountain (procedure for production of ammonia described) - Dynamic Science: [[Ammonia fountain]]\\

Laboratory Method of Preparation of Ammonia Gas (shows drying with diagram) - Kiran Sharma: 
{{youtube>tfp16iCwxIo?}}\\


====Variations====
  * The gas can be passed through a drying tube containing quicklime (CaO) to obtain dry ammonia.



====Safety Precautions====
  * Eye protection and lab coat required.  
  * Perform in a fume cupboard to avoid inhaling ammonia gas.  
  * Handle hot glassware carefully to avoid burns.  
  * Do not overheat the mixture, as sudden gas release may cause spattering.  
  * Ensure apparatus is clamped securely to prevent accidents.




====Questions to Consider====
  * Why is ammonia gas collected by downward displacement of air instead of over water? (It dissolves in water.)
  * What properties of ammonia allow it to rise and displace air in the jar?  
  * How does an ionic reaction equation simplify the understanding of the process?  
  * Why is it important to use a drying agent if pure, dry ammonia is required?