Laboratory use

  Ammonia is an important laboratory reagent, mainly used as an analytical reagent, neutralizer, alkaloid leach agent, aluminum salt synthesis and weak alkaline solvent.It is used in the synthesis of aluminum salts and in the verification and determination of certain elements (such as copper and nickel). It is used to precipitate hydroxides of various elements.

  Industrial use

  Wool spinning, silk, printing and dyeing industries are used to wash wool, wool, grey cloth, dissolve and adjust pH, and as dyeing aid.Organic industry as aminating agent, the production of thermosetting phenolic resin catalyst, inorganic industry for the preparation of various iron salts.

  Industrial used for large-scale integrated circuit decompression or plasma CVD, to grow silica film boiler feed water pH regulator, ammonia is used to neutralize the carbonation in the feed water, improve the pH value, slow down the corrosion of carbon dioxide in the feed water.It is also a protective agent for boiler stop furnace. It also has a better protective effect for boilers with a small amount of water storage that can not be released.

   In medicine, dilute ammonia water is used for reflex stimulation of respiration and circulation, treatment of fainting and fainting, and as skin irritant and disinfectant.

   As detergent, neutralizer, alkaloid leaching agent.Also used in pharmaceutical industry, gauze industry, blueprinting and so on.

  Agricultural use

  Agricultural after dilution can be used as fertilizer.

  The ammonia concentration of agricultural ammonia water is generally controlled in the range of 15%-18% nitrogen content, and the carbonization degree is better than 100%.Fertilization is easy and there are many methods, such as ditch application, surface application, along with irrigation water application or spray application.Before use, dilute to less than 1/1000 with water. Avoid contact with stems and leaves to avoid burning.

  The application principle of ammonia water is "one does not leave the soil, two does not leave the water".Not to leave the soil is to deeply cover the soil;Water is diluted with water to reduce concentration, reduce volatilization, or combined with irrigation.Because ammonia water is less dense than water, attention should be paid to avoid excessive accumulation in local areas and burn plants during irrigation.Ammonia water can be used as base fertilizer or topdressing fertilizer.

  The commonly used concentration of agricultural ammonia water in China is 15%, 17% and 20% ammonia. The concentration of foreign agricultural ammonia water is slightly higher, and it is generally 25% ammonia (20% nitrogen) products.In 2008, ammonia accounted for less than 0.2% of total nitrogen fertilizer production.