Aluminum sulfate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 10043-01-3 |
| Product name | Aluminum sulfate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial GradeCosmetic GradeFood Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Aluminum sulfate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Aluminum sulfate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Aluminum sulfate
| Industry | Application | Process |
|---|---|---|
| Water Treatment | Flocculant for drinking water and wastewater purification | Dosed into water, hydrolyzes to form aluminum hydroxide colloids that adsorb suspended particles and facilitate floc formation and subsequent sedimentation |
| Papermaking | Sizing agent (improves water resistance) | Reacts with rosin soap in pulp to form insoluble rosinic acid aluminum precipitate, which deposits on fiber surfaces |
| Dyeing & Printing | Mordant (color-fixing auxiliary) | Forms insoluble lake complexes with dye molecules, enhancing color fastness and brightness |
| Fire Protection | Component of fire extinguishing agents (foam stabilizer) | Blended with sodium bicarbonate, licorice extract, and other components to improve stability and persistence of protein or synthetic foams |
| Catalyst Manufacturing | Support or precursor (e.g., for γ-Al₂O₃ production) | Thermally decomposed via calcination at 500–800 °C to yield active alumina, used in catalytic processes such as petroleum cracking and desulfurization |
| Cosmetics | Active ingredient in antiperspirants (astringent) | Induces temporary contraction of the keratinized layer of sweat ducts upon topical application, thereby reducing sweat secretion (restricted to low-concentration formulations) |
| Soil Amendment | pH adjuster for acidic soils (lowers pH) | Dissolves to release Al³⁺, which hydrolyzes to generate acidity and neutralizes carbonate-based alkaline substances in soil (dosage must be carefully controlled to prevent aluminum toxicity) |
Manufacturing Quality Control of Aluminum sulfate
| Test Item | Common Test Method | Method Overview |
|---|---|---|
| Aluminum Sulfate Content | Complexometric Titration (EDTA Titration) | Titrating aluminum ions with a standard EDTA solution in a buffer solution at pH ≈ 5–6, using PAN or xylenol orange as indicator, to calculate aluminum sulfate content. |
| Aluminum Content | EDTA Complexometric Titration | Dissolve the sample and adjust pH. Add excess EDTA to complex with Al³⁺, then back-titrate the remaining EDTA with a standard zinc or copper solution to determine aluminum content. |
| Sulfate Content | Gravimetric Method (BaSO₄ Precipitation) | In acidic conditions, add barium chloride solution to precipitate sulfate as BaSO₄. Filter, wash, ignite, and weigh the precipitate to calculate sulfate content. |
| pH Value | pH Meter Method | Prepare an aqueous solution of aluminum sulfate (e.g., 1%) and directly measure its pH using a calibrated pH meter. |
| Insoluble Matter | Gravimetric Method | Dissolve the sample in water, filter the insoluble residue, dry, weigh, and calculate the percentage of insoluble matter relative to the sample mass. |
| Iron Content | Spectrophotometry (Sulfosalicylic Acid Colorimetric Method) | In a solution with pH = 8–11, iron ions form a yellow complex with sulfosalicylic acid; measure absorbance at 420 nm to quantify iron content. |
| Heavy Metals (e.g., Pb, As, Hg) | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After sample digestion, determine concentrations of heavy metal elements using AAS or ICP-MS. High sensitivity suitable for trace analysis. |
| Chloride Content | Argentometric Titration (Mohr Method) | Titrate chloride ions with standard AgNO₃ solution in neutral or weakly alkaline medium, using potassium chromate as indicator. The appearance of red Ag₂CrO₄ signals the endpoint. |
| Moisture (Crystalline or Free Water) | Loss on Drying Method | Dry the sample at approximately 105°C to constant weight; calculate moisture content based on weight loss. |
| Alkalinity (Free Acid or Alkaline Impurities) | Acid-Base Titration | Titrate free acid in the sample solution with standard NaOH solution, or determine possible alkaline impurities using standard HCl solution. |
Technical Specifications of Aluminum sulfate
| Test Item | Specification |
|---|---|
| Appearance | white power |
| AL2O3 | ≥16% |
| Fe | ≤0．005% |
| Water insoluble matter | ≤0．05% |
| pH | ≥3% |
| As | ≤0．001% |
| Pb | ≤0．001% |
| Hg | ≤0．0002 |
| Cr(IV) | ≤0．005% |
| Ca | ≤0．0005% |
| Cadmium (cd) | ≤0.00003% |
| Nickel(Ni0 | ≤0.00002 |
| Antimony ≤ /Selenium(Se) | ≤0.00002 |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Aluminum sulfate
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Packaging of Aluminum sulfate
Industrial Aluminum sulfate Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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