Aluminium ammonium sulphate extra pure
Description
Aluminium ammonium sulphate extra pure is a high-purity, laboratory-grade form of ammonium alum, chemically known as Aluminium Ammonium Sulfate dodecahydrate with the formula
NH
4
Al(SO
4
)
2
⋅
12
H
2
O
NH
4
Al(SO
4
)
2
⋅12H
2
O.
Chemical Description
Chemical Formula:
NH
4
Al(SO
4
)
2
⋅
12
H
2
O
NH
4
Al(SO
4
)
2
⋅12H
2
O
Molar Mass: 453.32 g/mol (dodecahydrate)
Appearance: White crystalline powder or colorless crystals
Grade: Extra pure/analytical reagent (AR/ACS), typically ≥98-99% purity
Solubility: Highly soluble in water; insoluble in alcohol
pH (5% solution): About 2.6–4.6 (acidic)
Properties and Uses
Coagulant: Used in water purification for coagulation and precipitation of suspended particles.
Textile Mordant: Used in dyeing and printing in the textile industry.
Laboratory Reagent: Suitable for analytical work and high-purity laboratory preparations.
Medical and Cosmetic: Acts as an astringent and antiperspirant in some formulations.
This grade is chosen when low levels of contaminants and high analytical performance are required, such as in research, quality control labs, or sensitive industrial processess.
Specifications
| Model No. | N-CH1155 |
|---|