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[Chemical Knowledge]：How to deal with ammonia water

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How to deal with
ammonia water
ammonia water is a common chemical, widely used in industrial production, household cleaning and disinfection and other fields, but its high corrosive and toxic make it extremely difficult to deal. In use, if you do not pay attention to the disposal of waste and residues, it will pose a serious threat to the environment and human health. Therefore, the treatment of ammonia water is very important.

1. understanding of ammonia

ammonia is a mixture of ammonia and water directly mixed, usually 10% - 35% ammonia solution. Ammonia, with the chemical formula NH3, is a colorless gas with a strong odor. Ammonia showing a colorless transparent liquid, a pungent smell, easy to volatilize.

ammonia is very basic and reacts with acid to produce salt and water. It can also react with other substances, such as phenol, palmitic acid, fatty acids, rosin, acrylic acid, etc., to form salts and fatty amides. These compounds have the functions of antistatic, enhancing gloss, improving curing and increasing viscosity. Hazards of

2. to Ammonia Water

Ammonia water is a hazard to humans and the environment due to its highly corrosive and toxic properties. Prolonged exposure to ammonia can irritate the skin, eyes and respiratory mucosa, causing pain and burning. Severe multiple exposures can lead to severe eye and respiratory damage, and even blindness and death.

must pay attention to safety measures when using ammonia water, such as wearing goggles, breathing masks, gloves, protective clothing, etc. At the same time, they must correctly store and dispose of wastes and residues to avoid harm to the environment and the human body.

3. how to deal with ammonia

1, neutralization treatment

ammonia has strong alkaline, can use acid substances for chemical neutralization treatment. For example, ammonia water may be neutralized with an acid solution such as dilute hydrochloric acid or sulfuric acid, so that ammonia in the ammonia water reacts with the acid to form a harmless substance such as ammonium chloride or ammonium sulfate. Attention should be paid to safety in the neutralization process to avoid deviation of the reaction process and secondary pollution to the environment.

2, evaporation and concentration method

ammonia water can be treated by evaporation and concentration method, the ammonia water is evaporated to a certain value, and then the precipitation method is used to completely precipitate the ammonia in the solution to form a precipitate of ammonium hydroxide. The precipitate can be converted into harmless substances by neutralization or reduction.

3. Oxidation Treatment
The ammonia water is treated
exposing the ammonia water to the air to oxidize the ammonia therein into nitrous acid, nitric acid, sulfuric acid, and the like. This method takes a long time. It should be noted that it is recommended to use a professional scientific research laboratory to formulate the operation process in order to carry out effective processing.