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[Chemical Knowledge]：Properties and Uses of Polyaluminium Chloride

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Polyaluminum chloride (PAC) is an inorganic polymer compound, which is widely used in the field of chemical production raw materials. It has unique properties and uses, and has become an important raw material in many industries. This article will detail the nature and use of polyaluminium chloride.

1. the nature of polyaluminum chloride

1. physical properties of
polyaluminum chloride is usually yellow or light yellow powder or granular, with strong hygroscopicity. It is easily soluble in water, after dissolution presents a colorless or light yellow transparent liquid.

2. chemical properties
polyaluminum chloride has high activity, and can be adsorbed, condensed and precipitated with colloidal particles and suspended solids in water. At the same time, it also has strong acidity and corrosiveness, and can adjust the pH value of the solution.

2. the use of polyaluminum chloride

1. water purification agent
polyaluminum chloride as a high efficiency water purification agent, widely used in water treatment and industrial wastewater treatment. It can effectively remove colloidal particles, suspended solids, chroma, turbidity, etc. in water, and improve water quality.

2. Papermaking auxiliaries
In the paper industry, polyaluminium chloride can be used as a sizing agent and reinforcing agent to improve the physical properties of the paper, such as tensile strength, tear strength and folding endurance, and at the same time, it can also improve the filler retention rate and color stability of the paper.

3. Printing and dyeing auxiliaries
polyaluminium chloride can be used for dye fixation and slurry solidification in the printing and dyeing industry to improve the color and luster of printing and dyeing products and the fastness to washing.

4. Ceramic additives
In the ceramic industry, polyaluminum chloride can be used as an additive in ceramic slurry to improve the stability and fluidity of the slurry, and at the same time can improve the strength and density of ceramic products.

In short, polyaluminium chloride as an important raw material for the production of chemicals, has a wide range of uses and unique properties. In the future development, with the continuous progress of technology and the continuous expansion of application fields, polyaluminum chloride will be applied in more fields.

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