Aluminium acetate

Aluminium acetate is a white, crystalline, water-soluble salt formed by the reaction of aluminium hydroxide with acetic acid, and is most commonly encountered as aluminium triacetate with the chemical formula

Al(CH

3

CO

2

)

3

Al(CH

3

CO

2

)

3

or

C

6

H

9

AlO

6

C

6

H

9

AlO

6

.​

Chemical Description

Chemical formula:

Al(CH

3

CO

2

)

3

Al(CH

3

CO

2

)

3

or

C

6

H

9

AlO

6

C

6

H

9

AlO

6

.​

Appearance: White, hygroscopic, crystalline solid.​

Molecular weight: 204.11 g/mol.​

Solubility: Highly soluble in water, forming a clear, colorless solution.​

pH (aqueous solution): Around 4.5.​

Melting point: Approximately 300°C.​

Properties and Uses

Astringent and Antiseptic: Aluminium acetate is commonly used as a topical astringent to relieve skin irritation, inflammation, and itching—often in over-the-counter solutions for dermatological care, such as treating poison ivy, bites, or athlete’s foot.​

Mordant in Dyeing and Printing: It is used in textile processing to help dyes and pigments adhere to fabrics.​

Laboratory and Industrial Uses: It acts as a reagent and stabilizer in chemical syntheses and can also be used for waterproofing or fireproofing fabrics.​

Chemical Structure

Aluminium acetate features a central aluminium atom bonded to three acetate anions via oxygen atoms, where each acetate group consists of a methyl group bound to a carboxyl group.​

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