Aluminium tartrate

Aluminium tartrate is an odorless, white to off-white crystalline powder that is the aluminum salt of tartaric acid, with the molecular formula

C

12

H

12

A

l

2

O

18

C

12

H

12

Al

2

O

18

and a molecular weight of about 498.18 g/mol. It is sparingly soluble in cold water and readily soluble in hot water and ammonia.​

Chemical Properties

Aluminium tartrate consists of aluminum(III) ions complexed with tartrate anions (derived from tartaric acid).​

It is odorless, typically appears as a white to off-white powder, and is used for its astringent properties.​

The compound’s solubility increases with temperature; it dissolves well in hot water and ammonia, but poorly in cold water.​

Uses

Commonly applied as a mordant in textile dyeing, enhancing dye adherence and color fastness.​

It is also utilized in some pharmaceutical, cosmetic, and material science applications, where its ability to form stable complexes or act as an astringent is important.​

Safety and Handling

Avoid contact with skin, eyes, and clothing; minimize dust generation and inhalation.​

Use appropriate personal protective equipment, ensure ventilation, and wash thoroughly after handling.​

The product is not flammable, but may form oxides of aluminum and carbon on decomposition.​

Stereochemistry

The tartrate ion is chiral, so aluminium tartrate can exist as different stereoisomers, which may influence its chemical behavior and physical properties.​

This compound is valued for its chemical stability, role in dyeing and materials chemistry, and potential utility in pharmaceuticals and cosmetics