Description

Aluminum Sulfate Hydrate is a versatile inorganic salt widely used as a primary coagulant and flocculating agent. Its efficacy in purifying water by removing suspended particles, color, and microorganisms makes it a cornerstone chemical for municipal and industrial treatment facilities. This product is essential for industries including pulp & paper manufacturing, textile processing, and as a raw material in the production of other aluminum compounds.

Application

• Water & Wastewater Treatment: Primary coagulant for drinking water purification, sewage treatment, and industrial effluent clarification.
• Pulp & Paper Industry: Used in sizing and pH control to improve paper quality and water retention.
• Textile Industry: Acts as a mordant in dyeing processes, helping fix dyes to fabrics.
• Construction: Accelerator in concrete setting and waterproofing agent.
• Cosmetics & Personal Care: Used as an astringent in antiperspirant formulations.
• Agriculture: Soil pH amendment and clarifying agent for irrigation ponds.
• Chemical Manufacturing: Key precursor for producing aluminum-based chemicals like aluminum oxide and polyaluminum chloride (PAC).
• Firefighting Foam: Component in some fire retardant mixtures.

Basic Information

Product Name	Aluminum Sulfate Hydrate
CAS No.	57292-32-7
Molecular Formula	Al2(SO4)3·xH2O
Molecular Weight	342.15 g/mol (anhydrous basis)
Synonyms	Aluminium Sulfate Hydrate; Sulfuric Acid, Aluminum Salt (3:2), Hydrate; Cake Alum; Filter Alum; Papermaker's Alum; Alum; Aluminum Trisulfate Hydrate; Dialuminum Trisulfate Hydrate
EINECS	Contact for details

Quality Control

Our Aluminum Sulfate Hydrate is manufactured under a stringent quality management system. We provide material that meets typical industry specifications for technical and water treatment grades. Each batch is accompanied by a Certificate of Analysis (COA) detailing key parameters such as assay, insoluble matter, and iron content. Certifications for specific applications, including those aligned with AWWA or NSF standards, are available upon request.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can lead to caking and reduced efficacy. Keep away from incompatible materials such as strong bases.

Specification

Item	Specification
Appearance	White crystalline lumps or powder
Identification (IR)	Conforms
Assay (as Al2(SO4)3)	≥ 98.0 %
Iron (Fe)	≤ 0.01 %
Water Insoluble Matter	≤ 0.1 %
pH (5% Solution)	2.5 - 4.0

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