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Properties Of Aluminum Chlorohydrate
Brief description of the properties of polyaluminum chloride
Polyaluminum chloride has unique chemical properties. Its appearance is often yellow or light yellow, dark brown, dark gray resin-like solid. In terms of chemical composition, it is a polynuclear complex, which is polymerized from various forms of aluminum hydroxyl compounds. The molecular structure contains different numbers of hydroxyl groups and chloride ions. This special structure gives it a variety of chemical activities.
From the perspective of solubility, polyaluminum chloride is easily soluble in water, and the dissolution process is rapid and stable. In water, it will undergo hydrolysis and polymerization reactions. Various hydroxyl aluminum ions generated by hydrolysis form polynuclear complexes through hydroxyl bridging, and then flocculate and precipitate impurities in water. This hydrolysis polymerization reaction presents different characteristics under different pH environments. In the pH range of 4-9, it can maintain a good flocculation effect, especially at pH value of 6-8, the flocculation performance is the best.
Polyaluminium chloride has excellent coagulation performance. Its hydrolysis products have a large number of positive charges, which can effectively neutralize the negative charges on the surface of suspended particles in water, reduce the repulsive force between particles, and agglomerate close to each other. At the same time, the polynuclear polymer produced by hydrolysis has an adsorption bridging effect, connecting fine particles into larger flocs, accelerating precipitation and separation, thereby efficiently removing suspended impurities, colloidal substances and partially dissolved organic matter in water.
In terms of thermal stability, polyaluminium chloride is stable in a certain temperature range. When the temperature is too high, its structure may change, affecting the hydrolysis polymerization and flocculation effect. Therefore, during storage and use, it is necessary to control the ambient temperature to avoid the degradation of product performance due to excessive temperature, and ensure that it continues to play an excellent role in water treatment and other fields.
Polyaluminum chloride has unique chemical properties. Its appearance is often yellow or light yellow, dark brown, dark gray resin-like solid. In terms of chemical composition, it is a polynuclear complex, which is polymerized from various forms of aluminum hydroxyl compounds. The molecular structure contains different numbers of hydroxyl groups and chloride ions. This special structure gives it a variety of chemical activities.
From the perspective of solubility, polyaluminum chloride is easily soluble in water, and the dissolution process is rapid and stable. In water, it will undergo hydrolysis and polymerization reactions. Various hydroxyl aluminum ions generated by hydrolysis form polynuclear complexes through hydroxyl bridging, and then flocculate and precipitate impurities in water. This hydrolysis polymerization reaction presents different characteristics under different pH environments. In the pH range of 4-9, it can maintain a good flocculation effect, especially at pH value of 6-8, the flocculation performance is the best.
Polyaluminium chloride has excellent coagulation performance. Its hydrolysis products have a large number of positive charges, which can effectively neutralize the negative charges on the surface of suspended particles in water, reduce the repulsive force between particles, and agglomerate close to each other. At the same time, the polynuclear polymer produced by hydrolysis has an adsorption bridging effect, connecting fine particles into larger flocs, accelerating precipitation and separation, thereby efficiently removing suspended impurities, colloidal substances and partially dissolved organic matter in water.
In terms of thermal stability, polyaluminium chloride is stable in a certain temperature range. When the temperature is too high, its structure may change, affecting the hydrolysis polymerization and flocculation effect. Therefore, during storage and use, it is necessary to control the ambient temperature to avoid the degradation of product performance due to excessive temperature, and ensure that it continues to play an excellent role in water treatment and other fields.
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