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1. Chemical properties of ammonium chloride.
Ammonium chloride is an inorganic compound composed of chlorine and ammonium ions with the chemical formula NH4Cl. Its crystals are white in color, soluble in water, and are a common chemical agent. Ammonium chloride is one of the acidic salts that can function as an acid or base under the right conditions.
2. The acid-base properties of ammonium chloride.
Ammonium chloride has a certain acidity and alkalinity in aqueous solution, which is determined by its ionic nature. In water, chloride is a stable anion and does not undergo any reaction. Whereas, ammonium ions undergo a hydrolysis reaction in water to form ammonium hydroxide ions and hydrogen ions
nh4++h2o↔nh3+h3o+
It can be seen that the hydrogen ions generated reduce the pH in the solution, making the solution acidic. At the same time, since NH3 is an alkaline substance, it can also react with water to form ammonium hydroxide ions and hydrogen ions
nh3+h2o↔nh4++oh-
Therefore, when the concentration of hydrogen ions in the solution is higher, ammonium chloride will exhibit acidity; When the concentration of hydrogen ions is low, it exhibits alkalineness. For a neutral solution, ammonium chloride does not exhibit any acidity or alkalinity.
3. Application of ammonium chloride.
Ammonium chloride has a variety of applications, and in addition to being a chemical reagent, it can also be used in the preparation of other compounds, electroplating, and pharmaceuticals. In the pharmaceutical field, ammonium chloride can be used as a expectorant that can promote the excretion of respiratory secretions. In addition, ammonium chloride can also be used in the agricultural field, it can be used as a nitrogen to promote the growth and development of crops.