Aluminium acetate
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Aluminium acetate or aluminium ethanoate{{cite book|url = http://www.oxfordreference.com/view/10.1093/acref/9780199204632.001.0001/acref-9780199204632-e-186?rskey=bytpyG&result=1|title = A Dictionary of Chemistry|edition = 6th| veditors = Daintith J |publisher = Oxford University Press|year = 2008|isbn = 978-0-19-920463-2 |chapter = Aluminium ethanoate (aluminium acetate)}} (also "aluminum ~"), sometimes abbreviated AlAc in geochemistry,{{cite book|url = http://science.energy.gov/~/media/bes/pdf/archives/summaries/geosciences_summary_book_fy1992.pdf|chapter = Geochemistry of Crustal Processes to High Temperatures and Pressures | vauthors = Wesolowski DJ, Blencoe JG, Cole DR, Bell JL, Palmer DA |pages = 38–44|year = 1992|title = Summaries of FY 92 Geosciences Research|publisher = United States Department of Energy}} can refer to a number of different salts of aluminium with acetic acid. In the solid state, three salts exist under this name: basic aluminium monoacetate, (HO)2AlCH3CO2, basic aluminium diacetate, HOAl(CH3CO2)2,{{cite book|url=https://books.google.com/books?id=0fT4wfhF1AsC&q=aluminium+triacetate+decomposes+200+C&pg=PA3|title=Handbook of Inorganic Compounds|publisher=CRC Press|year=1995|isbn=978-0-8493-8671-8 | veditors = Perry DL, Phillips SL }} and neutral aluminium triacetate, Al(CH3CO2)3. In aqueous solution, aluminium triacetate hydrolyses to form a mixture of the other two, and all solutions of all three can be referred to as "aluminium acetate" as the species formed co-exist and inter-convert in chemical equilibrium.
Stoichiometry
= Monoacetate =
{{main|Aluminium monoacetate}}
Aluminium monoacetate, also known as dibasic aluminium acetate, forms from Al(OH)3 and dilute aqueous acetic acid. More concentrated acid leads to the di- and triacetate.{{Cite book| vauthors = Wade K, Banister AJ, Bailar JA, Emeléus HJ, Nyholm R |url=https://www.worldcat.org/oclc/953379198|title=The Chemistry of Aluminium, Gallium, Indium and Thallium : Comprehensive Inorganic Chemistry.|date=1973|publisher=Elsevier Science|isbn=978-1-4831-5322-3|location=Saint Louis|pages=1047|oclc=953379198}}
= Diacetate =
= Triacetate =
{{main|Aluminium triacetate}}
Aluminium triacetate is a chemical compound that is prepared by heating aluminium chloride (AlCl3) or Al powder with a mixture of acetic acid (CH3COOH) and acetic anhydride (C4H6O3).{{Cite book | vauthors = Taylor MJ, Brothers PJ | chapter = Inorganic derivative of the elements | veditors = Downs AJ |title=Chemistry of Aluminium, Gallium, Indium, and Thallium|publisher=Chapman & Hall|year=1993|isbn=978-0-7514-0103-5 |location=Bishopbriggs, Glasgow|pages=158}} It is referred as the normal salt and is only made in the absence of water at a relatively high temperature like 180 °C.
References
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