Uses of Ammonium Chloride:
1. In Laboratories and Education:
- Ammonium Chloride is used to prepare buffer solutions by mixing it with Ammonium Hydroxide (NH₄OH) to maintain acid-base balance.
- It also serves as a reagent or chemical source in various laboratory experiments, training, and analytical procedures.
2. In Industry (Industrial Use):
- Galvanizing and Metal Cleaning: Used for removing rust from metals and surface treatment.
- Textile and Dyeing Industry: Helps regulate pH and stabilize dye mixtures before applying color to fabrics.
3. In Agriculture (Fertilizer):
- Used as a nitrogen-based fertilizer to supply essential nitrogen to crops.
- Application Method: Applied directly to the soil. The dosage depends on the crop type and soil pH (typically 50–100 kg per acre).
4. In Pharmaceuticals:
- Used as an expectorant in cough syrups to help loosen and expel mucus.
- It also aids in eliminating excess acid from the body, especially as a urinary acidifier.
5. In Cooling Mixtures:
- A mixture of Ammonium Chloride, water, and ice is used to create artificial cooling in laboratories to temporarily lower temperatures.
Safety Precautions:
- Avoid inhalation or contact with eyes, as it may cause harm.
- Always use gloves and safety goggles when handling.
- Keep out of reach of children.