Aluminium Sulfate (Al₂(SO₄)₃) - Versatile Industrial Coagulant & Chemical Intermediate

Aluminium Sulfate (Al₂(SO₄)₃) - Versatile Industrial Coagulant & Chemical Intermediate Product Overview Aluminium sulfate is a water-soluble inorganic salt with the formula Al₂(SO₄)₃, widely recognized for its role as a coagulating agent in water treatment and as a key additive in paper manufacturing. Available in anhydrous form (rare mineral millosevichite) and hydrated forms (notably hexadecahydrate Al₂(SO₄)₃·16H₂O and octadecahydrate Al₂(SO₄)₃·18H₂O), this compound delivers exceptional performance across industrial, environmental, and technical applications. Key Applications 1. Water Treatment & Purification Coagulant for Drinking Water & Wastewater: Neutralizes particle charges to promote flocculation, removing impurities in municipal and industrial water systems. Pool & Cooling Tower Treatment: Efficiently clarifies water by precipitating suspended solids. Mining Wastewater: Reduces turbidity and heavy metal ions through coagulation. 2. Paper Manufacturing Papermaker’s Alum: Acts as a sizing agent to improve ink retention and paper strength, and as a flocculant in pulp processing. 3. Construction & Fire Safety Concrete Accelerator & Waterproofing Agent: Speeds up setting time and enhances water resistance. Fire Extinguishing Foam: Reacts with sodium bicarbonate to generate CO₂-rich foam, smothering hydrocarbon fires (commonly used in Japan/India). 4. Agriculture & Horticulture Soil pH Regulator: Lowers soil alkalinity, ideal for acid-loving plants (e.g., hydrangeas, which change flower color with pH adjustment). Molluscicide: Effective against Spanish slugs in agricultural settings. 5. Industrial & Chemical Synthesis Textile Dyeing Mordant: Fixes dyes to fibers by forming insoluble pigment-alum complexes. Phase Transfer Catalyst: Facilitates organic reactions (e.g., Williamson ether synthesis). Antiperspirant & Medicinal Ingredients: Historical use in antiperspirants and sting relief products (e.g., Stingose). Physical & Chemical Properties Property Parameter Chemical Formula Al₂(SO₄)₃ CAS Number 7647-15-6 Appearance White crystalline powder/granules Solubility 90.5 g/100mL water (25°C) Density 3.21 g/cm³ (crystal) Melting Point 747°C Boiling Point 1,390°C pH (5% Solution) 6.5-8.0 Hygroscopicity Strong (requires moisture-proofing) Packaging & Supply Chain Packaging Options: 25kg/50kg plastic-lined woven bags 1000kg ton bags Customized IBC tanks (20,000L) for bulk orders Storage Conditions: Cool, ventilated warehouse; keep away from oxidants and moisture. Transportation: Non-hazardous (UN no special requirements); protected from rain and high temperatures. Quality & Compliance Purity Grades: Industrial grade: ≥99.0% Reagent grade: ≥99.9% Standards: Compliant with ISO 9001, REACH (for EU markets), and local environmental regulations. Safety & Handling Hazard Warnings: Irritant to eyes and mucous membranes; avoid inhalation of dust. Emergency Measures: Skin/eye contact: Rinse with water; seek medical advice. Ingestion: Induce vomiting with warm water. Storage Precautions: Separate from strong acids and oxidants; use dust masks and protective gear during handling. Why Partner With Us? Factory Direct Supply: Competitive pricing with direct access to production facilities. Technical Expertise: Customized solutions for water treatment capacity planning and formulation support. Global Logistics: Efficient shipping to North America, Europe, Southeast Asia, and beyond. If you are interested in our products, please contact: Bill Zhang Sales Director SHANDONG SUMCHEMICALS CO., LTD. Mobile/ WhatsApp: +86 156 6271 5985 QQ: 3267823033 Wechat: billzhang5985 E-mail: bill@sumsupply.com E-mail: