Name | Aluminium(II)chloride |
Synonyms | dichloroalumane Dichloroaluminum Aluminium(II)chloride Dichloro(hydrido)aluminum dichloro(hydrido)aluminum Aluminum Chloride Anhydrous |
CAS | 16603-84-2 |
InChI | InChI=1/Al.2ClH.H/h;2*1H;/q+2;;;/p-2/rAlCl2H/c2-1-3/h1H |
Molecular Formula | AlCl2 |
Molar Mass | 97.887538 |
aluminum trichloride | anhydrous aluminum trichloride generally refers to aluminum chloride, aluminum chloride (aluminum chloride) chemical formula AlCl3, is a compound of chlorine and aluminum. Aluminum chloride melting point, boiling point are very low, and sublimation, covalent compounds. Molten aluminum chloride is not readily conductive and differs from most halogen ion-containing salts (e. G., sodium chloride). AlCl3 adopts the "YCl3" structure, which is the cubic most densely packed layered structure of Al3, while Al3 in AlBr3 occupies the adjacent tetrahedral gap of the br− most densely packed framework. AlCl3 generates a volatile dimer Al2Cl6, which contains two three-center four-electron chlorine bridges. At higher temperatures, Al2Cl6 dimers dissociate to form a planar triangular AlCl3, which is similar to boron trifluoride (BF3). Anhydrous aluminum chloride can be white, yellow or gray, and can be prepared by adjusting the production conditions as needed. In general, if the content of impurities and free chlorine is higher, it is yellow. Aluminum chloride is a colorless transparent crystal or a white and slightly yellow crystalline powder. Aluminum chloride is present in the form of covalently dimeric molecules (Al2Cl6), either as vapors in non-polar solvents or in the molten state. Soluble in water and many organic solvents. The aqueous solution was acidic. In the presence of aromatic hydrocarbons, aluminum chloride can be mixed with aluminum to synthesize Di (aromatic) metal complexes. For example, diphenylchromium is prepared by a Fischer-Hafner synthesis of a specific metal halide. Anhydrous aluminum chloride can be used as a catalyst in organic chemical industry such as petroleum cracking, dyes, rubber, detergents, pharmaceuticals, spices, and synthesis of pesticide lubricants, aluminum chloride is mainly used as a catalyst in the world. |
Use | use as analytical reagent, strong dehydrating agent, Catalyst |