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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 .
Solid properties Std enthalpy change of formation Δ f H o solid: −705.63 kJ/mol Standard molar entropy S o solid: 109.29 J/(mol K) Heat capacity c p: 91.12 J/(mol K) Liquid properties Std enthalpy change of formation Δ f H o liquid-674.80 kJ/mol Standard molar entropy S o liquid: 172.91 J/(mol K) Heat capacity c p: 125.5 J/(mol K) Gas ...
The reason for this inconsistency was only discovered in 1921.) [88] He conducted a similar experiment in the same year by mixing anhydrous aluminium chloride with potassium and produced a powder of aluminium. [84] In 1845, he was able to produce small pieces of the metal and described some physical properties of this metal. [88]
Metal cations with a high oxidation state tend to undergo hydrolysis instead, e.g. ferric chloride, aluminium chloride, and titanium tetrachloride. [1] Discrete metal halides have lower melting and boiling points. For example, titanium tetrachloride melts at −25 °C and boils at 135 °C, making it a liquid at room temperature.
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.
Aluminium's electropositive behavior, high affinity for oxygen, and highly negative standard electrode potential are all more similar to those of scandium, yttrium, lanthanum, and actinium, which have ds 2 configurations of three valence electrons outside a noble gas core: aluminium is the most electropositive metal in its group. [1] Aluminium ...
Many trivalent metals are capable of forming alums. The general form of an alum is XY (SO 4) 2 · n H 2 O, where X is an alkali metal or ammonium, Y is a trivalent metal, and n often is 12. The most important example is chrome alum, KCr(SO 4) 2 ·12 H 2 O, a dark violet crystalline double sulfate of chromium and potassium, was used in tanning.
Aluminium monochloride, or chloridoaluminium is the metal halide with the formula AlCl. Aluminium monochloride as a molecule is thermodynamically stable at high temperature and low pressure only. [2] This compound is produced as a step in the Alcan process to smelt aluminium from an aluminium-rich alloy.