Dark mode
Ask a question
Commercial Fulfillment Snapshot
Buy Aluminum Sulfate 50% with faster decisions and fewer back-and-forth emails.
Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.
Who Buys This
- Water treatment facilities
- Paper manufacturing plants
- Textile dyeing operations
- Food processing companies
- Construction material suppliers
Purity / Grade Guide
- Industrial & lab applications
- 50% concentration verified by COA verified by COA
- Ready-to-use liquid solution
- Suitable for commercial processes
Pack Sizes
- 1 Quart: lab & small jobs
- 1 Gallon: shop & maintenance
- 5 Gallon: production & regular use
- 15 Gallon: mid-volume operations
- 55 Gallon: bulk drum
- 275 Gallon: high-volume tote
- 330 Gallon: max-volume tote
SDS / COA / TDS
- UN 3264 Class 8 packaging
- SDS
- COA
- Corrosive liquid transport labels
Small Packs: UPS Ground nationwide for pints, quarts, and gallons.
LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.
Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.
Product Overview
Aluminum Sulfate 50% , commonly known as Liquid Alum, is a concentrated aqueous solution of aluminum sulfate (Al₂(SO₄)₃). It is engineered for reliable coagulation, flocculation, and pH adjustment in industrial systems. This 50% solution provides consistent performance in water treatment and manufacturing processes, with a controlled assay range of 49–51% to ensure precise dosing.
The solution is clear, colorless to pale yellow, and odorless, facilitating integration into chemical workflows. With a density of approximately 1.20 g/mL at 25°C, it is suitable for standard pumping and metering equipment. Aluminum Sulfate 50% is widely used in paper manufacturing as a sizing agent and in construction for concrete acceleration. It is packaged in corrosion-resistant containers, including HDPE drums and totes, to maintain stability and prevent hydrolysis.
Key Properties
- Chemical Formula: Al₂(SO₄)₃
- CAS Number: 10043-01-3
- Concentration: 50% (49-51% Assay)
- Appearance: Clear, colorless to pale yellow liquid
- Specific Gravity (20°C): 1.18–1.22 (typical 1.20)
- Molecular Weight: 342.15 g/mol
- Solubility: Fully soluble in water
- Iron (Fe): ≤ 50 ppm (typical 10 ppm)
- Viscosity (25°C): 1.5 cP
Common Applications
- Water Treatment: Functions as a primary coagulant to neutralize charges and remove suspended solids, turbidity, and colloidal impurities in industrial wastewater.
- Paper Manufacturing: Acts as a sizing agent to improve fiber bonding, paper strength, and ink absorption; also used for pitch control.
- Construction & Concrete: utilized as an accelerator in shotcrete and concrete formulations to control setting times and improve workability.
- Textile Industry: Applied in dyeing processes as a mordant to stabilize color affinity and facilitate pigment precipitation.
- Chemical Processing: Used for pH reduction and as a raw material in the synthesis of other aluminum compounds.
Safety Precautions
Aluminum Sulfate 50% is an acidic solution that requires proper handling protocols. Personnel should wear acid-resistant gloves, safety goggles, and protective clothing to prevent skin and eye contact. The product acts as an irritant and can cause burns upon prolonged exposure. Ensure adequate ventilation during use.
Store in a cool, dry area in corrosion-resistant containers (HDPE, fiberglass, or glass). Keep separated from strong bases and oxidizers. In the event of a spill, contain with inert absorbent material and neutralize according to local regulations. Refer to the Safety Data Sheet (SDS) for comprehensive handling, storage, and emergency response information.
Benefits
High Purity Formulation: solution with controlled iron and heavy metal content for predictable process results.
Efficient Coagulation: Rapidly forms floc to settle suspended solids in varied water chemistries.
Versatile Utility: Effective for pH control, sizing, and chemical synthesis across multiple industries.
Scalable Packaging: Available in sizes ranging from 1 quart to 330-gallon totes to suit both pilot testing and full-scale production.
Related Products
| Property | Value |
|---|---|
| Molecular Weight | 342.15 g/mol |
| Formula | Al2(SO4)3 |
| Assay | 50% |
| Grade | Technical |
| Flash Point | N/A |
| Form | Liquid |
| Solubility | Highly water soluble |
| Appearance | White crystalline powder |
| Melting Point | 770 °C |
| Boiling Point | 150 °C |
| Specific Gravity | 1.33 |
| Industry | Industrial & Manufacturing, Water & Environmental |
Frequently Asked Questions About Aluminum Sulfate 50%
What is Aluminum Sulfate 50% and what is its chemical formula?
Aluminum Sulfate 50% is a chemical compound with the molecular formula Al2(SO4)3, registered under CAS Number 10043-01-3 by the Chemical Abstracts Service (PubChem), with a molecular weight of 342.15 g/mol. Alliance Chemical supplies Aluminum Sulfate 50% in Technical grade for laboratory, industrial, and commercial applications.
What are the physical properties of Aluminum Sulfate 50%?
According to the NIOSH Pocket Guide to Chemical Hazards, Aluminum Sulfate 50% is supplied as a liquid with a white crystalline powder appearance. It has a melting point of 770°C, a boiling point of 150°C, a flash point of N/A. The specific gravity is 1.33 relative to water. Solubility: Highly water soluble.
What grade and purity of Aluminum Sulfate 50% does Alliance Chemical offer?
Alliance Chemical offers Aluminum Sulfate 50% in Technical grade with a purity assay of 50%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of Aluminum Sulfate 50%?
Aluminum Sulfate 50% serves a wide range of sectors, including Industrial & Manufacturing, and Water & Environmental.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling Aluminum Sulfate 50%?
OSHA-mandated PPE per 29 CFR 1910.132-138:Chemical-resistant gloves (20+ mil neoprene or PVC), full face shield over safety goggles (ANSI Z87.1), acid-resistant apron or chemical suit, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for Aluminum Sulfate 50%?
Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:bases, reactive metals, organic materials. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for Aluminum Sulfate 50%?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Carefully neutralize with sodium bicarbonate (5-10% solution), monitor exothermic reaction. (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for Aluminum Sulfate 50%?
DOT Classification per 49 CFR 172.101:See SDS Section 14 for specific UN number, Hazard Class8 (Corrosive), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must Aluminum Sulfate 50% waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D002 (Corrosive, pH ≤2 or ≥12.5). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for Aluminum Sulfate 50%?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Aluminum Sulfate 50%. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.
Learn More About This Product
Cooling Tower Water Treatment: The Plant Engineer's Complete Chemical Guide
Facility Engineering Guide Cooling Tower Water Treatment: The...
Aluminum Sulfate in Metal Fabrication: How Shops Use Alum to Treat Wastewater and Cut Disposal Costs
Metal fabrication and machine shops generate wastewater from...
Aluminum Sulfate Dosing for Phosphorus Removal in Recirculating Gravel Filter Systems
Learn how to calculate and apply liquid aluminum...
GFN-MMC-IBG
$21.45
Unit price
Compare Products
| Price |
|---|
| SKU |
| Rating |
| Discount |
| Vendor |
| Tags |
| Weight |
| Stock |
| Short Description |