💧 Solubility of Ammonium Chloride in Water
- At 25 °C (room temperature): ~37 g per 100 mL of water
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Solubility increases with temperature.
- Example: ~77 g per 100 mL at 100 °C
When dissolved in water:
It dissociates completely into ammonium ions and chloride ions, making it a strong electrolyte.
🌡️ Effect on Solution
- The solution is slightly acidic (pH ~5.5) due to hydrolysis of the NH₄⁺ ion
🧪 Applications of Its Solubility
- Buffer solutions (especially with ammonia)
- Fertilizers
- Electrolytes in dry cell batteries
- Cooling mixtures (with water and ice)
- Laboratory reagent for preparing solutions