Description

Aluminium Sulfate Hydrate is a 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 compound is also essential in the paper manufacturing, textile dyeing, and construction industries, where it serves as a sizing agent, mordant, and accelerator.

Application

• Water and Wastewater Treatment: Primary coagulant for drinking water purification, municipal sewage treatment, and industrial effluent processing to remove turbidity, color, and phosphate.
• Paper Industry: Used as a paper sizing agent to improve ink receptivity and reduce absorbency, and in the production of aluminum rosin size.
• Textile Industry: Acts as a mordant in dyeing processes to fix colors onto fabrics, improving colorfastness.
• Construction: Employed as an accelerator in concrete formulations and in the manufacturing of waterproofing agents and firefighting foam.
• Agriculture: Used to lower soil pH and as a micronutrient supplement in certain fertilizers.
• Cosmetics and Personal Care: Found in astringents and as an active ingredient in some antiperspirants.
• Chemical Manufacturing: Serves as a raw material for producing other aluminum compounds like aluminum hydroxide and polyaluminum chloride (PAC).

Basic Information

Product Name	Aluminium Sulfate Hydrate
CAS No.	17927-65-0
Molecular Formula	Al2(SO4)3·xH2O
Molecular Weight	342.15 g/mol (anhydrous basis)
Synonyms	Aluminum sulfate hydrated; Sulfuric acid, aluminum salt (3:2), hydrate; Cake alum; Filter alum; Papermaker's alum; Alum; Dialuminum trisulfate hydrate; Aluminum trisulfate hydrate; EINECS 233-135-0
EINECS	233-135-0

Quality Control

Our Aluminium Sulfate Hydrate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and performance. We offer various grades, including technical and purified, which can be tailored to meet specific industry requirements. A comprehensive Certificate of Analysis (COA) detailing assay, impurity levels, and physical specifications is provided with each shipment to guarantee compliance with your application standards.

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 sealed to prevent moisture absorption and caking. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F).

Specification

Item	Specification
Appearance	White crystalline lumps or powder
Identification (IR)	Conforms
Assay (as Al2(SO4)3)	≥ 98.0 %
Iron (Fe)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 10 ppm
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.