Ammonia is the most dominant alkaline gas in the atmosphere and plays an important role in aerosol nucleation. It is also the key to causing heavy haze pollution and excessive nitrogen deposition. Ammonia is important to life on Earth and is found in almost all foods and fertilizers.

Ammonia is also contained in the ingredients of many medicines. In the normal environment, ammonia exists in the form of gas. When the ammonia gas is pressurized or cooled, it forms liquid ammonia, which can be used as a refrigerant. 

Many commercial coolers use ammonia as a coolant. Ammonia gas absorbs heat. And it does it very efficiently. That makes it an effective refrigerant that can be used in commercial cooling systems and air-conditioners. 

Ammonia is used: 

• As a fertilizer for increasing the yield of crops. 

• In the manufacturing of synthetic fabrics such as rayon and nylon. 

• As cleaner in the household – NH₃ combined with water for washing stainless steel and glass. 

• As fuel for rocket engines. 

• In the fermentation in the industrial sector. 

• As antimicrobial agents in food products. 

• To neutralize pollutants such as nitrogen oxides produced by diesel engines. 

• In the textile industry. 

• As a pH adjuster during the fermentation process.