Aluminium ethoxide

Aluminium ethoxide
Names
	Other names Aluminium ethoxide; Triethoxyaluminum
Identifiers
CAS Number	555-75-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	21171290;
ECHA InfoCard	100.008.279
PubChem CID	16685041;
UNII	S34F5V33DX ;
CompTox Dashboard (EPA)	DTXSID7027203 ;
	InChI InChI=1S/3C2H5O.Al/c31-2-3;/h32H2,1H3;/q3-1;+3 Key: JPUHCPXFQIXLMW-UHFFFAOYSA-N; InChI=1/3C2H5O.Al/c31-2-3;/h32H2,1H3;/q3-1;+3/rC6H15AlO3/c1-4-8-7(9-5-2)10-6-3/h4-6H2,1-3H3 Key: JPUHCPXFQIXLMW-MHHMYNCNAZ;
	SMILES CCO[Al](OCC)OCC;
Properties
Chemical formula	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)
Solubility in water	reacts violently
Solubility	slightly soluble in xylene, chlorobenzene
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H228, H314
Precautionary statements	P210, P280, P305+P351+P338, P310
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 (I
₂) and mercuric chloride (HgCl
₂) as catalysts.^[4]

References

^ ^a ^b ^c ^d "Aluminum Ethoxide". American Elements. Retrieved 2019-07-15.
^ 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.
^ "Aluminium ethoxide". The Merck Index. Royal Society of Chemistry.
^ 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.

[sds-1] "Aluminum Ethoxide". American Elements. 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] "Aluminium ethoxide". The Merck Index. Royal Society of Chemistry.

[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.

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