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Aluminum chloride

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Identification
Molecular formula
AlCl3
CAS number
7446-70-0
IUPAC name
trichloroalumane
State
State

Aluminum chloride is typically a solid at room temperature.

Melting point (Celsius)
192.40
Melting point (Kelvin)
465.50
Boiling point (Celsius)
180.00
Boiling point (Kelvin)
453.00
General information
Molecular weight
133.34g/mol
Molar mass
133.3400g/mol
Density
2.4800g/cm3
Appearence

Aluminum chloride is typically a white or pale yellow solid. It can be found in granule or powder form. If any moisture is present, it often appears as pale yellow due to impurities or partial hydrolysis. In its anhydrous form, it is crystalline.

Comment on solubility

Solubility of Trichloroalumane

Trichloroalumane, or AlCl3, exhibits notable solubility characteristics that are essential for its applications in various chemical processes. This compound significantly dissolves in:

  • Water: While AlCl3 is sparingly soluble in cold water, its solubility increases markedly when heated or if the water is acidic.
  • Organic solvents: It effectively dissolves in several organic solvents, such as benzene and chloroform, which can assist in facilitating organic reactions.

When it comes to its solubility mechanism, there are a few notable factors to consider:

  1. The formation of hydrated complexes in water enhances solubility—this is a result of the ionic interactions between aluminum ions and water molecules.
  2. Trichloroalumane is often added to organic reactions as a Lewis acid, demonstrating increased activity in solutions.
  3. In the presence of moisture, it can readily hydrolyze, leading to the formation of aluminum hydroxide and hydrochloric acid, which may influence its effective solubility in practical applications.

In summary, the solubility of trichloroalumane is a complex interplay of temperature, solvent type, and reaction conditions. Understanding these factors is crucial for chemists aiming to utilize this compound effectively in research and industrial applications.

Interesting facts

Interesting Facts about Trichloroalumane

Trichloroalumane, commonly known as aluminum trichloride, is an intriguing and multifunctional compound with several noteworthy properties and applications. Here are some key facts that highlight its significance:

  • Catalytic Role: Trichloroalumane is widely recognized for its role as a catalyst in various chemical reactions, including Friedel-Crafts alkylation and acylation. This makes it invaluable in organic synthesis, where it facilitates the formation of complex molecular structures.
  • Solvation Property: Trichloroalumane has the unique ability to form complexes with many organic solvents. This ability enhances its versatility in chemical processes and is crucial in industrial applications, where solvent choice can impact the outcome of reactions.
  • Electrolytic Applications: In the field of materials science, aluminum trichloride is utilized in electrolytic processes to produce aluminum metal. Its role in the Hall-Héroult process underscores its importance in aluminum production, which is fundamental to various industries.
  • Environmental Impact: Being a source of aluminum ions, trichloroalumane is sometimes used to treat wastewater and to precipitate phosphates, contributing to pollution control efforts.
  • Reactivity: The compound can react vigorously with water, leading to the formation of hydrochloric acid and aluminum hydroxide. This reactivity necessitates careful handling in laboratory and industrial settings.
  • Storage and Stability: Trichloroalumane's hygroscopic nature means it can absorb moisture from the air, which can affect its stability and should be considered when storing it.

In conclusion, trichloroalumane is not just a simple compound; it is a multi-faceted entity with remarkable properties and applications across diverse fields. Its ability to act as a catalyst and its significant industrial relevance make it a subject of continued interest and study within the field of chemistry.

Synonyms
ALUMINUM CHLORIDE
Aluminium chloride
Aluminum trichloride
Trichloroaluminum
Aluminum chloride anhydrous
Pearsall
Aluminiumchlorid
TK Flock
Aluminum chloride (1:3)
Chlorure d'aluminium
Aluminum chloride, anhydrous
Alluminio(cloruro di)
Caswell No. 029
Hemoban
Aluminium, (chlorure d')
Aluminum chloride (anhydrous)
CCRIS 6871
HSDB 607
EINECS 231-208-1
Aluminum, (chlorure d')
EPA Pesticide Chemical Code 013901
NSC 143015
NSC 143016
NSC-143015
NSC-143016
UNII-LIF1N9568Y
AI3-01917
LIF1N9568Y
DTXSID6029674
CHEBI:30114
EC 231-208-1
Anhydrous Aluminum Chloride
Lumicain
Caswell no 029
DTXCID809674
ALUMINUM CHLORIDE, (ANHYDROUS)
USEPA/OPP Pesticide Code: 013901
231-208-1
3cyt62d3ga
ai3-01918
aluminium chloride anhydrous
aluminium chloride hexahydrate
aluminium chloride hexahydrate (ep monograph)
aluminium muriaticum
aluminum chloride (usp monograph)
aluminum chloride, hexahydrate
aluminum(iii) chloride, hexahydrate
ccris 5552
chebi:30115
unii-3cyt62d3ga
7446-70-0
trichloroalumane
Aluminium trichloride
AlCl3
Aluminum chloride (AlCl3)
7371-55-3
Aluminum chloride, anhydrous, powder
MFCD00003422
WLN: AL G3
Aluminiumchlorid [German]
Chlorure d'aluminium [French]
Alluminio(cloruro di) [Italian]
trichloridoaluminium
Aluminum, (chlorure d') [French]
Aluminium, (chlorure d') [French]
UN1726
UN2581
aluminium(3+) chloride
[AlCl3]
Aluminum chloride, ultra dry
Aluminium chloride, Anhydrous
CHEMBL3833401
BCP21020
NSC143015
NSC143016
Aluminum chloride, puriss., 98.0%
AKOS015902776
Aluminum chloride, anhydrous, granular
Aluminum chloride, reagent grade, 98%
DB11081
NCGC00180999-01
Aluminum chloride, ReagentPlus(R), 99%
BP-10698
NS00075678
Aluminum chloride, 99.99% trace metals basis
Aluminum chloride, anhydrous, sublimed, >=98%
Aluminum chloride, SAJ first grade, >=98.0%
Q314036
Aluminum chloride, anhydrous, >= 99%, -40 Powder
Aluminum chloride, anhydrous [UN1726] [Corrosive]
Aluminum chloride, purum, anhydrous, >=98.0% (AT)
Aluminum chloride,ultra dry, 99.999% anhydrous, powder
Aluminum chloride, 99.98% trace metals grade anhydrous, powder
Aluminum chloride, anhydrous, powder, 99.99% trace metals basis
Aluminum chloride, anhydrous, powder, 99.999% trace metals basis
Aluminum standard for AAS, analytical standard, traceable to BAM
Aluminum chloride, anhydrous, crystallized 4-6 mesh size (crystalline chunks)