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Aluminium chloride, also known as aluminium trichloride, is an inorganic compound with the formula AlCl 3. It forms a hexahydrate with the formula [Al(H 2 O) 6 ]Cl 3 , containing six water molecules of hydration .
Aluminium chlorohydrate can be commercially manufactured by reacting aluminium with hydrochloric acid. A number of aluminium-containing raw materials can be used, including aluminium metal , alumina trihydrate , aluminium chloride , aluminium sulfate and combinations of these.
In hot concentrated hydrochloric acid, aluminium reacts with water with evolution of hydrogen, and in aqueous sodium hydroxide or potassium hydroxide at room temperature to form aluminates—protective passivation under these conditions is negligible. [9] The reaction with aqueous alkali is often written: [2] Al + NaOH + H 2 O → NaAlO 2 ...
AlCl is synthesized by reaction of liquid aluminium with gaseous HCl at 1200 K and 0.2 mbar to yield gaseous AlCl and hydrogen gas. [1] At 77 K, AlCl is a dark red solid which turns black upon disproportionation at temperatures higher than 180 K.
Aluminium hydroxide is a feedstock for the manufacture of other aluminium compounds: calcined aluminas, aluminium sulfate, polyaluminium chloride, aluminium chloride, zeolites, sodium aluminate, activated alumina, and aluminium nitrate.
It involves the reduction of anhydrous aluminium chloride with potassium, produced powdered aluminium: [1] AlCl 3 + 3 K → Al + 3 KCl With advent of more efficient means of electrolysis, e.g., Hall–Héroult process , the Wöhler process and related chemical-based routes became obsolete.
Aluminium chloride could be reduced by sodium, a metal more convenient and less expensive than potassium used by Wöhler. [48] Deville was able to produce an ingot of the metal. [ 49 ] Napoleon III of France promised Deville an unlimited subsidy for aluminium research; in total, Deville used 36,000 French francs —20 times the annual income of ...
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