Introduction of poly aluminum chloride

Poly aluminum chloride, commonly known as water purification agent, also known as aluminum chloride, referred to as poly-aluminum, the English name of PAC. Poly aluminum chloride and aluminum chloride hydroxide, spray drying PAC belong to the same relevant class purifying agent. The polyaluminum chloride is a polyhydroxy Polynuclear complex body of cationic inorganic polymer flocculant, the appearance of the solid product as a reddish-brown, yellow or white powder, and its chemical formula is [AL2 (OH) nCL6-n] m (where 1 ≤ n ≤ m ≤ 10), and soluble in water, has a strong bridge adsorption, accompanied by electrochemical during the hydrolysis process, cohesion, and physical adsorption and precipitation changes, the final , [AL2 (OH) 3 (OH) 3], so as to achieve the purpose of purification.



Poly aluminum chloride (PAC) is usually also referred to as a purifying agent or coagulant, it is between ALCL3 and Al (OH) 3 between a water-soluble inorganic polymers, the general chemical formula [Al2 (OH) NCL6 -NLM] wherein m represents the degree of polymerization, n denotes the degree of PAC neutral.

Poly aluminum chloride compared with other coagulants, has the following advantages: a wide range of applications to adapt to a wide range of water-based. Easy to quickly form large alum precipitation performance. Appropriate a wide range of PH value (5-9), and treated water PH value and alkalinity down small. When the water temperature is low, and still maintain a stable precipitation effect. Alkalization than other aluminum salts, iron salts, the equipment erosion.

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