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Polyaluminum chloride (PAC) is a water-soluble inorganic polymer intermediate between AlCl₃ and Al(OH)₃, with the general chemical formula [Al₂(OH)ₙCl₆₋ₙ] ₘ (1 ≤ n ≤ 5, m ≤ 10). It possesses a highly charged polymeric ring-chain structure and serves as a highly efficient water treatment flocculant, combining electrostatic neutralization, bridging adsorption, and precipitation functions. It is widely used in the purification of drinking water and industrial wastewater, as well as in sludge treatment. It is low in toxicity and corrosion, and its treatment efficiency surpasses that of traditional aluminum salts.
| Item | Specification |
| Melting Point | N/A |
| Boiling Point | N/A |
| Bulk Density | 0.45–0.65 g/cm³ |
| Flash point | N/A |
| PH | 1% aqueous solution 3.5–5.0 (weakly acidic) |
| Solubility | Decomposes when heated above 110°C; depolymerizes upon reaction with acids; increases polymerization degree upon reaction with alkalis, ultimately forming Al(OH)₃ precipitate. |
Aluminum chlorohydrate is used for the purification of raw water for municipal drinking water; flocculation treatment of municipal sewage and industrial wastewater; as well as industrial circulating water and reclaimed water reuse.
It is used as retention aids and filtration aids in papermaking; for decolorization and flocculation of dyeing and textile wastewater; coal washing in mining, and oilfield chemical processing.
Sugar and food processing industries: decolorization and clarification of sugar solutions; purification of process water.
Building materials, ceramics, and refractory industries: flocculation and clarification of slurries to improve material separation efficiency.
Sludge treatment: aids in sludge thickening, flocculation, and sedimentation; reduces sludge moisture content to facilitate subsequent dewatering.
Jinan Jinbang Chemical Co., Ltd., strategically located within the New Materials Industrial Park in Tianqiao District, Jinan City, Shandong Province, stands as a prominent chemical innovator since its establishment in 2015. Operating from a modern, expansive 37,500 m² manufacturing facility, we are dedicated to the research & development, production, and global distribution of high-performance chemical solutions.
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