SODIUM ALUMINUM SULFATE DODECAHYDRATE, BLACK

Chemical designation: Sodium aluminum sulfate dodecahydrate

Chemical formula: NaAl_(SO4)2 - _12H2O

Molar mass: 458.21 g/mol

CAS number: 10102-90-6
EC number: 233-432-5

Technical specifications

• Form: solid (white or colorless powder/crystals)
• Color: white tocolorless
• Odor: odorless
• pH value (5%, 20°C): 3.0 - 3.5
• Melting point: approx. 61°C (with decomposition)
• Boiling point: not applicable (with decomposition)
• Density (20°C): approx. 1.7 g/cm³
• Solubilityin water: readily soluble (approx. 110 g/l at 20°C)
• Solubility in organic solvents: no data available
• Content: min. 99.5%
• Water-insoluble components: max. 0.005%.
• Chlorides (Cl): max. 0.0005 %.
• Ammonium salts (_NH4): max. 0.005 %.
• Arsenic (As): max. 0.00005%
• Cadmium (Cd): max. 0.0003%
• Copper (Cu): max. 0.0003%
• Lead (Pb): max. 0.0004%
• Sodium (Na): max. 0.02%
• Iron (Fe): max. 0.001%

Examples of professional applications in various industries

• For analytical and laboratory applications
• In food chemistry - as a clarifying and coagulating agent (not suitable for AR)
• In tanning and textile dyeing as a dye fixative
• In water treatment and paper industry

Hazard statements (H)

The product is not classified as a hazardous substance according to CLP regulation.

Precautionary measures (P)

305+351+338 - In case of eye contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.

Restrictions

Do not use for food or pharmaceutical purposes without prior confirmation of compatibility. Intended for professional and laboratory use.

Recommended storage conditions

Store in a tightly closed container in a cool, dry place. Protect from moisture and contact with acids and alkalis.