Reactions
Ammonium chloride appears to sublime upon heating. However, this process is actually decomposition into ammonia and hydrogen chloride gas.
- NH4Cl → NH3 + HCl
Ammonium chloride reacts with a strong base, e.g. sodium hydroxide, to release ammonia gas:
- NH4Cl + NaOH → NH3 + NaCl + H2O
Similarly, ammonium chloride also reacts with alkali metal carbonates at elevated temperatures, giving ammonia and alkali metal chloride:
- 2 NH4Cl + Na2CO3 → 2 NaCl + CO2 + H2O + 2 NH3
A 5% by weight solution of ammonium chloride in water has a pH in the range 4.6 to 6.0.
Read more about this topic: Ammonium Chloride
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