Chemistry:Aluminium triethoxide

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Aluminium triethoxide
Aluminium triethoxide.svg
Names
Other names
Aluminium ethoxide
Triethoxyaluminum
Identifiers
3D model (JSmol)
ChemSpider
UNII
Properties
C6H15AlO3
Molar mass 162.165 g·mol−1
Appearance White powder
Density 1.142 g/cm3
Melting point 140 °C (284 °F; 413 K)
Boiling point 320 °C (608 °F; 593 K)
reacts violently
Solubility slightly soluble in xylene, chlorobenzene
Hazards
GHS pictograms GHS02: FlammableGHS05: Corrosive[1]
GHS Signal word Danger[1]
H228, H314[1]
P210, P280, P305+351+338, P310[1]
Flash point 210 °C (410 °F; 483 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Aluminium triethoxide (also Aluminum ethoxide) is a reducing agent that exists as a white powder under room temperature and standard atmospheric pressure.[citation needed] The chemical is mainly used in industrial settings and has played an important role in reducing the cost of the production of bimetallic aluminium catalysts.[2]

Properties

Aluminium triethoxide is hygroscopic, and decomposes into aluminium hydroxide and ethanol after it absorbs moisture from the air. Aluminium triethoxide is slightly soluble in hot dimethyl benzene, chlorobenzene and other high boiling point non-polar solvents.[3]

Applications

Aluminium triethoxide is used as a reducing agent for aldehydes and ketones, and is also used as a polymerization catalyst. Aluminium triethoxide is mainly used in Sol-Gel Process preparation of high purity aluminium sesquioxide, which is a polymerization agent. At the same time, it is used as a reducing reagent, for example, carbonyl compounds that restore to alcohol.[clarification needed]

Synthesis methods

Aluminium triethoxide is produced by the heating reaction of an aluminium amalgam with anhydrous alcohol. All the reagents go through a strict water treatment, and the instrument devices prevent humidity from entering.

Alternatively, aluminium triethoxide is produced by reacting aluminium with anhydrous alcohol, with iodine (I2) and mercuric chloride (HgCl2) as catalysts.[4]

References

  1. 1.0 1.1 1.2 1.3 "Aluminum Ethoxide". American Elements. https://www.americanelements.com/aluminum-ethoxide-555-75-9. Retrieved 2019-07-15. 
  2. North, Michael; Young, Carl (2 November 2011). "Reducing the Cost of Production of Bimetallic Aluminium Catalysts for the Synthesis of Cyclic Carbonates". ChemSusChem 4 (11): 1685–1693. doi:10.1002/cssc.201100239. PMID 22045591. 
  3. Template:Cite Merck Index
  4. Wilhoit, R. C.; Burton, J. R.; Kuo, Fu-tien; Huang, Sui-Rong; Viquesnel, A. (1 December 1962). "Properties of aluminium ethoxide". Journal of Inorganic and Nuclear Chemistry 24 (7): 851–861. doi:10.1016/0022-1902(62)80106-7. ISSN 0022-1902.