Aluminium diacetate, also known as basic aluminium acetate, is a white powder with the chemical formula C4H7AlO5. It is one of a number of aluminium acetates and can be prepared in a reaction of sodium aluminate (NaAlO2) with acetic acid.

Aluminium diacetate
Skeletal formula of aluminium diacetate
Names
IUPAC name
Aluminium diacetate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.005.017 Edit this at Wikidata
UNII
  • InChI=1S/2C2H4O2.Al.H2O/c2*1-2(3)4;;/h2*1H3,(H,3,4);;1H2/q;;+3;/p-3 checkY
    Key: HQQUTGFAWJNQIP-UHFFFAOYSA-K checkY
  • InChI=1/2C2H4O2.Al.H2O/c2*1-2(3)4;;/h2*1H3,(H,3,4);;1H2/q;;+3;/p-3/rC4H7AlO5/c1-3(6)9-5(8)10-4(2)7/h8H,1-2H3
    Key: HQQUTGFAWJNQIP-JQTRRPLUAZ
  • CC(=O)O[Al](O)OC(C)=O
  • O[Al](OC(C)=O)OC(C)=O
Properties
C4H7AlO5
Molar mass 162.077 g·mol−1
Appearance White, opaque crystals
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Causes irritation to skin and eye
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
1
1
1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Medicinal use

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Aluminium diacetate is used as an antiseptic and astringent. It is used topically as wet dressing, compress, or soak for self-medication to temporarily relieve itching and soothe, particularly on wet or weeping lesions. It relieves skin irritation from many causes, such as insect bites, athlete's foot, urushiol-induced contact dermatitis from plants poisonous to the touch such as poison ivy, oak, or sumac,[1] and skin irritation due to sensitivity to soaps, detergents, cosmetics, or jewellery. It is also used to relieve swelling from bruises. Preparations are also used topically for the relief of a variety skin conditions such as eczema, diaper rash, acne, and pruritus ani. It is typically used in the form of Burow's solution, 13% of AlAc in water. In the USA medications containing aluminium acetate are sold under the brand names Domeboro Powder, Gordon's Boro-Packs, and Pedi-Boro Soak Paks.[2] It is sold in gel form under the name TriCalm.[3]

Acetic acid/aluminium acetate solution can be used medicinally to treat infections in the outer ear canal. This medication stops the growth of the bacteria and fungus and beneficially dries out the ear canal.[4] US preparations for this purpose include Domeboro Otic, Star-Otic, and Borofair.[5]

Mordant

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In the dyeing industry, basic aluminium diacetate is used in combination with aluminium triacetate as a mordant for fibres like cotton.[6]

References

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  1. ^ "MedlinePlus Medical Encyclopedia: Rashes." U.S National Library of Medicine. U.S. National Library of Medicine, 22 Oct. 2011. Web. 08 Oct. 2012.
  2. ^ Drugs.com: Aluminum Acetate (Monograph). Provides sources for each specific use.
  3. ^ "TriCalm Uses". TriCalm official website. 2012. Archived from the original on 12 November 2020. Retrieved 3 August 2013.
  4. ^ Medicine Net. "Acetic Acid/Aluminum Acetate - OTIC (Domeboro) Side Effects, Medical Uses, and Drug Interactions." MedicineNet. N.p., n.d. Web. 08 Oct. 2012.
  5. ^ Drugs.com: Acetic acid/ aluminum acetate solution
  6. ^ Haar, Sherry; Schrader, Erica; Gatewood, Barbara M. (2013). "Comparison of aluminum mordants on the colorfastness of natural dyes on cotton" (PDF). Cloth. & Textiles Res. J. 31 (2): 97–108. doi:10.1177/0887302X13480846. hdl:2097/16316. S2CID 56218102.