Hanson Chemicals

Aluminum Sulfate

Formula: Al₂(SO₄)₃
EC Number (EINECS): 233-135-0
HS Code: 28332200
UN Number: Not classified as hazardous for transport
IUPAC Name: Aluminum Sulfate
Also Known As: Alum; Alunogen; Cake Alum
Molecular Weight, g/mol: 342.15 (anhydrous)

Typical Specifications

Appearance: White crystalline solid or powder
Odor: Odorless
Melting Point, °C: Decomposes >770
Boiling Point, °C: Not applicable (decomposes)
Density, g/cm³ (at 20°C): 2.71 (anhydrous)
pH (1% solution): 2.9–3.5
Purity, %: ≥98 (technical grade)
Grades Available: Industrial, Technical, Food Grade
Packaging: 25kg bags, 50kg bags, jumbo bags, bulk

Applications / Uses

Primary Applications

  • Widely used as a coagulant/flocculant in drinking water and wastewater treatment

  • Paper sizing agent in paper and pulp industry

  • Mordant in textile dyeing

Secondary Applications

  • Used in fireproofing textiles

  • Soil conditioner in agriculture

  • Additive in construction (accelerator in concrete)

  • Component in deodorants and antiperspirants (pharma/cosmetic grade)

End Industries Served: Water Treatment, Pulp & Paper, Textiles, Agriculture, Construction, Cosmetics, Pharmaceuticals

Safety & Handling Information

Hazard Class (GHS): Eye Irritant (Category 2), Skin Irritant (Category 2)

Hazard Statements (H-Codes):

  • H315: Causes skin irritation

  • H319: Causes serious eye irritation

  • H335: May cause respiratory irritation

Precautionary Statements (P-Codes):

  • P280: Wear protective gloves/eye protection

  • P261: Avoid breathing dust/fumes

  • P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses if possible

Storage Conditions

  • Store in cool, dry, ventilated area

  • Protect from moisture and humidity (hygroscopic)

  • Keep packaging tightly sealed

Transport Information

  • ADR/RID: Not classified as dangerous goods

  • IMDG: Not classified as dangerous goods

  • IATA: Not classified as dangerous goods

Regulatory Information

  • REACH Status (EU): Registered

  • FDA Approval: Permitted in food industry (specific grades only, as a processing aid)

  • ISO Certification: Available on request (ISO 9001 for manufacturing grade)

  • Country Standards: Meets BIS / ASTM / EU technical specifications depending on grade

Additional Information

  • Shelf Life: 1 year (stored properly, moisture-protected)

  • Country of Origin: [To be filled – e.g., India, China, EU]

  • Typical Packaging Sizes: 25kg bags, 50kg bags, jumbo bags, bulk supply

  • Storage Temperature: Ambient, avoid damp areas

  • Stability: Stable under normal storage conditions; decomposes on heating

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