CAS 7784-31-8 Aluminum sulfate hydrate - Catalysts / Alfa Chemistry

Synonyms

Aluminium sulfate octadecahydrate, extra pure; Al2(SO4)3.18H₂O; TCS9L00G8F; I14-19744; CHEBI:74779; Patent alum; MFCD00149136; Cake alum octadecahydrate; Dialuminum sulfate octadecahydrate; Aluminium Sulfate Octadecahydrate;

IUPAC Name

dialuminum;trisulfate;octadecahydrate;

Molecular Weight

666.401g/mol

Molecular Formula

Al2H36O30S3;

Canonical SMILES

O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Al+3].[Al+3];

InChI

InChI=1S/2Al.3H₂O4S.18H₂O/c;;3*1-5(2,3)4;;;;;;;;;;;;;;;;;;/h;;3*(H2,1,2,3,4);18*1H2/q2*+3;;;;;;;;;;;;;;;;;;;;;/p-6;

InChI Key

AMVQGJHFDJVOOB-UHFFFAOYSA-H;

Storage

Store at room temperature.

Complexity

62.2

Covalently-Bonded Unit Count

Exact Mass

666.008g/mol

H-Bond Acceptor

H-Bond Donor

Heavy Atom Count

Monoisotopic Mass

666.008g/mol

Topological Polar Surface Area

284A^2

UNII

TCS9L00G8F

Application

Aluminum sulfate hydrate serves as a versatile starch modifier and firming agent. Its primary purpose is to enhance the texture and firmness of pickles and vegetables during processing. Additionally, it acts as a processing aid in the production of baked goods, gelatins, and puddings. This compound, a white powder known for its high solubility in water, is produced through the reaction of kaolin or nepheline with sulfuric acid. Beyond its use in the food industry, aluminum sulfate hydrate is utilized in various industrial applications. It plays a significant role in non-metallic flotation processes and is an essential component in by-product molybdenum circuits, where it helps depress talc at a pH of 7. Furthermore, it aids in the suppression of talc during the treatment of talcous nickel ores when paired with carboxyl methyl cellulose. Aluminum salts, including this product, are effective in depressing minerals such as calcite, dolomite, and barite, making aluminum sulfate hydrate a valuable co-depressant in fluoride flotation procedures involving barite-containing ores.

March 19, 2025

Highly Effective Starch Modifier for Research Applications

Aluminum sulfate hydrate from Alfa Chemistry was instrumental in our lab for modifying starches. Its solubility and role as a co-depressant in mineral circuits enhanced our research outcomes significantly. Highly recommend for industrial and scientific use!