Description

Aluminium Sulfate Hexadecahydrate is a highly versatile inorganic salt widely used as a primary coagulating and flocculating agent. Its efficacy in purifying water by removing suspended particles and phosphates makes it a cornerstone chemical for municipal and industrial water treatment facilities. This product is essential for industries requiring efficient clarification processes, including paper manufacturing, textile processing, and wastewater management.

Application

• Water & Wastewater Treatment: Primary coagulant for drinking water purification, municipal sewage treatment, and industrial effluent management to remove turbidity, color, and phosphates.
• Paper Industry: Used as a sizing agent and retention aid to improve paper sheet formation, water resistance, and pigment retention.
• Textile Industry: Serves as a mordant in dyeing processes to fix colors onto fabrics, ensuring colorfastness and vibrant shades.
• Cosmetics & Personal Care: Acts as an astringent and active ingredient in antiperspirant formulations.
• Construction: Employed as an accelerator in concrete setting and for soil stabilization.
• Gardening & Horticulture: Used to lower soil pH (increase acidity) for acid-loving plants.
• Firefighting Foam: Component in some fire retardant and firefighting foam formulations.
• Laboratory & Chemical Synthesis: Used as a catalyst or reagent in various chemical manufacturing processes.

Basic Information

Product Name	Aluminium Sulfate Hexadecahydrate
CAS No.	16828-11-8
Molecular Formula	Al2(SO4)3 · 16H2O
Molecular Weight	630.39 g/mol
Synonyms	Aluminum Sulfate Hexadecahydrate; Sulfuric Acid, Aluminum Salt (3:2), Hexadecahydrate; Cake Alum; Filter Alum; Papermaker's Alum; Alum; Dialuminum Trisulfate Hexadecahydrate; Dialuminum Trisulfate 16-Hydrate
EINECS	233-135-0

Quality Control

Our Aluminium Sulfate Hexadecahydrate is manufactured under a stringent quality management system. Production batches are tested against rigorous internal specifications to ensure consistent purity and performance for industrial applications. While typically supplied as a technical grade, we can discuss compliance with relevant standards such as AWWA B403, FCC, or USP based on your requirements. A Certificate of Analysis (COA) is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in original packaging or sealed containers to prevent caking and absorption of atmospheric moisture. Keep away from incompatible materials such as strong bases.

Specification

Item	Specification
Appearance	White crystalline lumps or powder
Identification (IR)	Conforms
Assay (Al2O3 basis)	≥ 17.0 %
Iron (Fe)	≤ 0.01 %
Water Insoluble Matter	≤ 0.1 %
pH (5% Solution)	≥ 2.5

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.