* Reaction with Ammonia: Calcium chloride reacts with ammonia to form a complex compound, ammoniacal calcium chloride. This reaction consumes ammonia and prevents it from being dried.
* Formation of Ammonium Chloride: The reaction between ammonia and calcium chloride can also lead to the formation of ammonium chloride (NH₄Cl), which is a solid and can contaminate the ammonia.
Suitable Drying Agents for Ammonia:
Instead of calcium chloride, the following drying agents are commonly used for ammonia:
* Sodium Metal: Sodium metal is a very effective drying agent for ammonia, but it is highly reactive and requires careful handling.
* Potassium Hydroxide (KOH): Potassium hydroxide is a strong base and can effectively absorb water from ammonia.
* Calcium Oxide (CaO): Calcium oxide is a less reactive drying agent than sodium metal or potassium hydroxide, but it is still effective in drying ammonia.
Note: When choosing a drying agent for ammonia, it is essential to consider its reactivity with ammonia and the desired level of dryness.
