Langyou Chemical
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Aluminum Sulfate Dry Applications Properties Production
Alumite, known as "Aluminum Sulfate Dry" in the world, has great contributions in various fields. Its characteristics are unique, and it has a wide range of uses. The preparation method also has its own chapter.
The nature of alumite is white and crystalline, like a powder particle, or a lump. Its taste is astringent, easily soluble in water, and has a certain degree of corrosiveness. At room temperature, the chemical properties are still stable, but when encountering strong acids and alkalis, it can also react.
In terms of its use, the first is the ability to purify water. When the water body is purified, the alumite enters the water, that is, hydrolyzed to produce an aluminum hydroxide colloid. This colloid has strong adsorption, which can collect impurities suspended in water and clarify the water. Therefore, it is often used in the field of drinking water treatment and wastewater purification. Furthermore, the papermaking industry also depends on it. In the papermaking process, alum stone can be used as a sizing agent to help the paper resist water, and increase the strength and smoothness of the paper, making the paper good. In the printing and dyeing industry, it is also a mordant, which promotes the dye to stick to the fabric, making the dyeing uniform and firm. In the field of medicine, it is also used as an astringent, with hemostatic and anti-inflammatory effects.
As for the preparation method, bauxite and sulfuric acid are often used as materials. First grind the bauxite, put it in a reactor with sulfuric acid, and heat and stir. It should be as follows: $Al_2O_3 + 3H_2SO_4\ longrightarrow Al_2 (SO_4) _3 + 3H_2O $. After the reaction is completed, after settling, filtering, removing impurities, and then concentrating and crystallizing, the product of aluminium stone can be obtained. There are kaolin as raw materials, after roasting, acidification and other processes, it can also be obtained.
The use of aluminium stone is related to people's livelihood. However, when preparing and using, when operating in accordance with regulations, it is important to protect safety to avoid personal injury and protect the environment from its contamination.
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