ALUMINUM SULFATE- ▸ Water treatment: Primary coagulant/flocculant for potable-water and wastewater clarification.
- ▸ Pulp & paper: Sizing agent in paper manufacture.
- ▸ Textile dyeing: Mordant for fixing dyes.
- ▸ Leather tanning: Tanning and processing agent.
- ▸ Fire/water proofing: Fireproofing and waterproofing of cloth and concrete.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.
Aluminum sulfate (CAS 10043-01-3, Al2(SO4)3) is an inorganic aluminum salt widely used as a coagulant/flocculant in drinking-water and wastewater treatment. It also serves as a sizing agent in papermaking, a mordant in textile dyeing, a leather-tanning agent, and in fireproofing and waterproofing of cloth and concrete. In water treatment it is commonly called filter alum.
Frequently Asked Questions
What is aluminium sulfate used for?
Aluminum sulfate (CAS 10043-01-3, Al2(SO4)3) is mainly a coagulant/flocculant for drinking-water and wastewater treatment, where it is often called filter alum. It also serves as a sizing agent in papermaking, a mordant in textile dyeing, a leather-tanning agent, and in fireproofing and waterproofing of cloth and concrete.
Is Epsom salt the same as aluminum sulfate?
No. Epsom salt is magnesium sulfate (MgSO4); aluminum sulfate is Al2(SO4)3, an aluminum salt (CAS 10043-01-3). They are chemically distinct compounds with different uses. Refer to the SDS for the specific product.
What is the chemical formula and CAS number for aluminium sulfate?
Aluminum sulfate has the formula Al2(SO4)3 (listed as Al2O12S3) and CAS 10043-01-3. It is supplied in solid and solution forms; grade, Al2O3 content, and iron specification vary and are confirmed on the CoA per lot.
How is bulk aluminum sulfate shipped (DOT/UN)?
Aluminum sulfate solution ships under UN 3264. Solid grades and solution differ in classification and packaging, so confirm the correct shipping description and packaging for your form with the SDS and your carrier. We supply in drums, totes, IBCs, and bulk.
What is the cost of bulk aluminium sulfate?
Bulk pricing depends on form (solid vs. solution), grade (e.g., water-treatment vs. technical), and order volume. We supply manufacturers and treatment operators in bulk — request a quote with your target grade and tonnage for current pricing, SDS, and CoA.
