Poly aluminium chloride is a high-molecular inorganic polymer with cementitious properties. It serves as a binder for refractory coatings, ultra-pure alumina products, and refractory concrete materials. As a multivalent, polyhydroxy electrolyte, it can be considered an intermediate in the hydrolysis of AlCl₃ to Al(OH)₃. Its colloidal nucleus carries a positive charge, and the hydrolysis products are acidic.
| Product Name: | Aluminum chlorohydrate |
| Synonyms: | Aluminiumchlorohydrate;polyaluminumhydroxychloride;Aluminum chloride, basic;ALUMINIUM POLYCHLORIDE;PolyaluminiumChloride(Pac);ALUMINUM POLYHYDROXYCHLORIDES;Polybasic aluminum chloride; Aluminum oxychloride |
| CAS: | 1327-41-9 |
| MF: | AlClHO |
| MW: | 79.44 |
| EINECS: | 215-477-2 |
| Product Categories: | Water Ttreatment Chemicals;Water treatment;UVCBs-inorganic;Industrial/Fine Chemicals;water treatment chemical;1327-41-9 |
| Mol File: | 1327-41-9.mol |
Aluminum chlorohydrate Chemical Properties
| Density | 1.36[at 20℃] |
| Vapor pressure | 0.001Pa at 20℃ |
| Solubility | Soluble in H2O |
| Form | Glassy solid |
| Color | Glass, glassy solid |
| Water Solubility | Soluble H2O, forms slightly turbid colloidal solution [MER06] |
| Stability | Stable. Incompatible with many metals. |
| InChI | InChI=1S/Al.ClH.H2O.H/h;1H;1H2;/q+2;;;/p-2 |
| InChIKey | MTSHNTORJWMHCG-UHFFFAOYSA-L |
| SMILES | [AlH](Cl)O |
| LogP | -1.380 (est) |
| CAS DataBase Reference | 1327-41-9(CAS DataBase Reference) |
| EPA Substance Registry System | Aluminum chloride hydroxide (1327-41-9) |
Polyaluminium Chloride (PAC) is primarily utilized as a highly effective flocculant for the treatment of drinking water, industrial water, and wastewater. It also aids in sludge dewatering and finds applications in industries such as papermaking (as a sizing agent), pharmaceuticals, sugar refining, and as a catalyst carrier.

