一水合亚硫酸铵用途英语

一水合亚硫酸铵用途英语
Ammonium Bisulfite.
Ammonium bisulfite, also known as ammonium hydrogen sulfite, is a colorless to white crystalline solid with the chemical formula NH4HSO3. It is a salt of ammonium and bisulfite, and is a weak acid. Ammonium bisulfite is soluble in water and has a pungent, sulfurous odor.
Production.
Ammonium bisulfite is produced by reacting ammonia with sulfur dioxide in water. The reaction is exothermic, and the product is a clear, colorless solution. The solution is then crystallized to form ammonium bisulfite.
Uses.
Ammonium bisulfite is used in a variety of industrial and commercial applications, including:
Papermaking: Ammonium bisulfite is used as a bleaching agent in the papermaking process. It helps to remove lignin from the paper pulp, which results in a brighter, whiter paper.
Textile dyeing: Ammonium bisulfite is used as a reducing agent in the textile dyeing process. It helps to reduce the dyes to the desired color.
Food processing: Ammonium bisulfite is used as a preservative in food processing. It helps to prevent the growth of bacteria and mold.
Water treatment: Ammonium bisulfite is used as a disinfectant in water treatment. It helps to kill bacteria and other microorganisms.
Photography: Ammonium bisulfite is used as a fixing agent in photography. It helps to remove unexposed silver salts from the photographic paper.
Safety.
Ammonium bisulfite is a corrosive substance and can cause irritation to the skin, eyes, and respiratory tract. It is important to wear protective clothing and equipment when working with ammonium bisulfite.
Environmental impact.
Ammonium bisulfite is a pollutant and can have a negative impact on the environment. It can contribute to acid rain and can be harmful to aquatic life. It is important to properly dispose of ammonium bisulfite to minimize its environmental impact.
Additional information.
Ammonium bisulfite is a relatively unstable compound and can decompose to form sulfur dioxide and ammonia.
Ammonium bisulfite is a reducing agent and can be used to reduce other compounds.
Ammonium bisulfite is a weak acid and can react with bases to form ammonium salts.。