- As nitrogen fertilizers: Ammonium salts provide nitrogen, an essential nutrient for plant growth. Nitrogen helps plants grow healthy leaves and stems, and is a component of proteins, nucleic acids, and other essential plant compounds. Common ammonium-based fertilizers include ammonium nitrate, ammonium sulfate, and ammonium phosphate.

Explosives:

- Certain ammonium salts such as ammonium nitrate are widely used in the production of commercial explosives. When combined with other components like fuel oil (ANFO) or TNT, ammonium nitrate undergoes rapid decomposition releasing large amounts of gas, creating the explosive force.

Cleaning Products:

- Ammonium hydroxide, also known as ammonia solution, is commonly used in household cleaning products due to its grease-cutting abilities and disinfectant properties.

Textile Industry:

- Ammonium compounds, specifically ammonium chloride, are employed in the textile industry to modify fabric properties, improve dye adsorption, and as softening agents.

Rubber Industry:

- Ammonium salts find application in the vulcanization process of rubber, acting as accelerators to enhance the bonding of sulfur to rubber during the curing process.

Medical Field:

- Some ammonium salts have medical uses. For instance, ammonium chloride is used as an expectorant in cough syrups, helping to loosen mucus in the respiratory tract.

Batteries:

- Ammonium chloride finds application in electrolyte solutions for several types of batteries, providing the necessary ionic mobility for charge transfer.

These are just a few examples of the wide range of applications for ammonium salts in various industries and everyday life.