Ammonia solution, or ammonium hydroxide, has a wide range of applications and uses in various industries and everyday life. Some of the major applications of ammonia solution include:

1. Cleaning and Household Use: Ammonia solution is commonly used as a household cleaner for tasks such as cleaning glass, mirrors, countertops, and bathroom fixtures. It can effectively remove grease, grime, and stains.
2. Industrial Cleaning: In industrial settings, ammonia solution is used for cleaning and degreasing machinery, equipment, and surfaces. It’s especially useful for removing oil and grease residues.
3. pH Regulation: Ammonia solution is employed as a pH regulator in various chemical processes, particularly in industries like water treatment, textiles, and food processing.
4. Cooling and Refrigeration: In some industrial applications, ammonia solution is used as a refrigerant, especially in large-scale refrigeration systems like those in food processing and cold storage facilities.
5. Agriculture: Ammonia solution can be used in agriculture as a source of nitrogen for fertilizers. It provides a readily available form of nitrogen for plant growth.
6. Laboratory Applications: Laboratories may use ammonia solution in chemical experiments and analyses, primarily for its role in adjusting the pH of solutions.
7. Metal Cleaning: Ammonia solution is used for cleaning and removing tarnish from various metals, including silver and brass.
8. Textile and Fabric Industry: It is utilized in textile and fabric industries for dyeing and printing processes, as well as in desizing and scouring operations.
9. Wastewater Treatment: Ammonia solution can be added to wastewater treatment processes to adjust the pH and aid in the removal of impurities.
10. Manufacturing Processes: It is used in various manufacturing processes, such as the production of pharmaceuticals, plastics, and chemicals.
11. Ammonium Salts Production: Ammonia solution can be a precursor for the production of various ammonium salts, which have multiple applications, including as fertilizers and in the pharmaceutical industry.
12. Gas Scrubbing: In industrial settings, ammonia solution is used in gas scrubbers to remove acidic gases like sulfur dioxide (SO2) and hydrogen chloride (HCl) from industrial emissions.
13. Analytical Chemistry: It is used in analytical chemistry techniques, such as titrations, to determine the concentration of acids and other substances.
14. pH Control in Swimming Pools: Ammonia solution is sometimes used in swimming pools to help control and maintain the pH level of the water.