Aluminum sulfate
Aluminum sulfate (CAS: 10043-01-3), with the chemical formula Al₂("SO₄")₃ and a molecular weight of 342.15 g/mol, is a versatile inorganic salt. Supplied by Tech Serve Solutions, this compound typically presents as a powder and chunks with high purity. It is widely employed as a coagulant in water treatment and paper manufacturing, and serves crucial roles in leather tanning, textile dyeing, and as a component in various industrial processes requiring pH control or a firming agent.
Water Treatment and Purification
Aluminum sulfate acts as a highly effective coagulant, facilitating the removal of suspended solids and impurities from water sources. Its application is crucial in both municipal water treatment facilities and industrial wastewater management.
Pulp and Paper Industry
In pulp and paper mills, aluminum sulfate is used as a sizing agent, improving the paper's resistance to ink penetration and enhancing its overall quality. It also aids in water clarification within the mill processes.
Textile Dyeing and Leather Tanning
As a mordant, aluminum sulfate assists in fixing dyes to fabrics during textile processing, ensuring colour fastness. In leather tanning, it contributes to the preservation and treatment of animal hides.
Industrial Processes
This compound finds utility in lubricating compositions, as a component in fire-retardant materials, and in the decolourisation of petroleum products. It also serves as a catalyst and for pH adjustment in various chemical syntheses.
| Molecular weight | 342.15 |
|---|---|
| Linear formula | Al2(SO4)3 |
| Assay | 99.99% trace metals basis |
| Form | powder and chunks |
| Density | 2.71 g/mL at 25 °C(lit.) |
| pH | 2.80 Min. (of 5% Solution) |
| Impurities tested | 0.3 % Max Insolubles |
| Melting point | 770 °C (dec.)(lit.) |
Hazard statements
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 HAZ Class 9 / PG III |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 41 |
| Safety statements (S) | 26-39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is aluminum sulfate used for?
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Aluminum sulfate is primarily used as a coagulant in water purification and wastewater treatment, in the pulp and paper industry for sizing, and as a mordant in textile dyeing and leather tanning. It also has applications in lubricating compositions, fire retardants, and petroleum decolourisation.
What is the CAS number and chemical formula for aluminum sulfate?
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The CAS number for aluminum sulfate is 10043-01-3, and its chemical formula is Al₂("SO₄")₃.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies aluminum sulfate with an assay of 99.99% trace metals basis. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated in the product documentation.
How should aluminum sulfate be handled safely?
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Aluminum sulfate is classified as a Danger hazard, primarily due to its potential to cause serious eye damage (H318). Safe handling requires wearing eye protection, gloves, and a dust mask (N95 type). Avoid contact with eyes and skin; in case of eye contact, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do, and seek immediate medical attention.
How is aluminum sulfate shipped and exported?
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Aluminum sulfate is shipped and exported under UN 3077, Hazard Class 9, Packing Group III. Tech Serve Solutions adheres to all international shipping regulations for hazardous materials.
How can I request a sample or a quote for aluminum sulfate?
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To request a sample or a quote for aluminum sulfate, please contact our sales team through the provided channels on the Tech Serve Solutions website, specifying the product CAS number (10043-01-3) and your required quantity.
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