Description

Aluminum Sulfate CAS NO 10043-01-3 is a versatile inorganic salt widely recognized for its coagulating and flocculating properties. It is a critical chemical for water purification and treatment processes across municipal and industrial sectors. Key industries that rely on this compound include paper manufacturing, wastewater treatment, and textile processing, where it serves as a cost-effective solution for clarification and pH adjustment.

Application

• Water Treatment: Primary coagulant for purifying drinking water and treating industrial/municipal wastewater.
• Paper Manufacturing: Used as a sizing agent and retention aid to improve paper quality and production efficiency.
• Textile Industry: Serves as a mordant in dyeing processes to fix colors onto fabrics.
• Construction: Acts as an accelerator in concrete setting and for soil stabilization.
• Cosmetics & Personal Care: Found in astringents and as a firming agent in some formulations.
• Gardening & Horticulture: Used to lower soil pH for acid-loving plants.
• Leather Tanning: Employed as a tanning agent in the processing of hides.
• Firefighting Foam: Component in some types of fire retardant foams.

Basic Information

Product Name	Aluminum Sulfate
CAS No.	10043-01-3
Molecular Formula	Al2(SO4)3 · xH2O
Molecular Weight	342.15 g/mol (anhydrous basis)
Synonyms	Alum; Cake Alum; Filter Alum; Papermaker's Alum; Sulfuric Acid, Aluminum Salt; Aluminum Trisulfate; Dialuminum Trisulfate; Patent Alum; Pearl Alum; Pickle Alum
EINECS	233-135-0

Quality Control

Our Aluminum Sulfate is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. We offer various grades, including technical and purified, which are controlled against stringent internal specifications. A Certificate of Analysis (COA) detailing key parameters such as assay, iron content, and insoluble matter is provided with every shipment to guarantee product quality and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials. Due to its hygroscopic nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can lead to caking. Store at room temperature (15-25°C).

Specification

Item	Specification
Appearance	White crystalline solid or lumps
Identification (IR)	Conforms
Assay (as Al2(SO4)3)	≥ 98.0 %
Iron (Fe)	≤ 0.01 %
Water Insoluble Matter	≤ 0.1 %
pH (5% Solution)	2.5 - 3.5

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