Kaolin High Alumina 39.5% Made in Iran
Iranian kaolin, also known as china clay or white clay, is a high-alumina hydrated aluminosilicate mineral with an Al₂O₃ content of 39.5% and SiO₂ content of 46.5%. This white, soft powder, with the chemical formula Al₄(Si₄O₁₀)(OH)₈, is valued for its excellent plasticity, refractoriness (melting point 1785°C), and high whiteness. It is widely used in the production of paper, paints, ceramics, tiles, refractories, and rubber. The product is available in white (high alumina) and premium (low iron) grades. Ball clay, a related refractory clay that withstands temperatures ≥1500°C, is also supplied.
The Supply Chain Department at Sahi Rasa Company supplies Iranian kaolin and ball clay for export to Afghanistan, Iraq, the Kurdistan Region, Tajikistan, Uzbekistan, Armenia, Georgia, Turkey, and Syria. Whether for ceramics manufacturing, paper coating, or paint production, the department ensures reliable supply, competitive pricing, and comprehensive logistics support.
1. Introduction to the Supply Chain Department at Sahi Rasa Company
The Supply Chain Department at Sahi Rasa Company is a specialized unit in Iran responsible for sourcing, procurement, and export of industrial minerals, including high-quality kaolin and ball clay. This department manages the entire supply chain — from sourcing raw clay from qualified deposits to delivering finished, quality-certified material to factories abroad. By leveraging extensive experience in mineral processing and international trade, the department ensures that every shipment of kaolin and ball clay meets the technical specifications demanded by the ceramics, paper, paint, and refractory industries.
For clients in Afghanistan, the Kurdistan Region, Iraq, Tajikistan, Uzbekistan, Armenia, Georgia, Turkey, and Syria, the Supply Chain Department at Sahi Rasa Company offers flexible supply programs, technical consultation, and comprehensive logistics support.
2. Product Overview
Kaolin, also known as china clay or white clay, is a soft, white, earthy mineral produced by the chemical weathering of aluminium silicate minerals like feldspar. Its primary constituent is the mineral kaolinite, a hydrated aluminosilicate with the chemical formula Al₄(Si₄O₁₀)(OH)₈. Kaolin is characterized by its fine particle size, plate-like particle shape, high whiteness, and excellent plasticity when mixed with water.
Ball clay is a type of kaolinitic clay that is more plastic and refractory than standard kaolin. It is composed primarily of kaolinite, mica, and quartz, and is known for its high green strength and ability to withstand high temperatures (≥1500°C) without deforming. Iranian kaolin and ball clay are used extensively in the ceramics industry for the production of tiles, sanitaryware, porcelain, and tableware. In the paper industry, kaolin is used as a coating and filler to improve printability, opacity, and brightness. In paints, it serves as an extender pigment that improves durability and reduces cost. In refractories, kaolin provides high-temperature strength and thermal shock resistance.
3. Physical Specifications Table
| Parameter | Specification |
|---|---|
| Product Name | Kaolin (China Clay) |
| Synonyms | China Clay, White Clay, Kaolinite |
| Chemical Formula | Al₄(Si₄O₁₀)(OH)₈ |
| Appearance | White, soft powder |
| Al₂O₃ Content | 39.5% |
| SiO₂ Content | 46.5% |
| Water Content | 14% |
| Density | 2.1 – 2.6 g/cm³ |
| Melting Point | 1785°C |
| Hardness (Mohs) | 2.0 – 2.5 |
| Whiteness | ≥ 90% |
| pH | 4.5 – 7.0 |
| Packaging | 25 kg bags, 1 MT jumbo bags |
4. Chemical Specifications Table
| Component | Content (%) |
|---|---|
| SiO₂ (Silicon Dioxide) | 46.5 |
| Al₂O₃ (Aluminium Oxide) | 39.5 |
| Fe₂O₃ (Iron Oxide) | ≤ 0.5 |
| TiO₂ (Titanium Dioxide) | ≤ 0.3 |
| CaO (Calcium Oxide) | ≤ 0.2 |
| MgO (Magnesium Oxide) | ≤ 0.1 |
| K₂O (Potassium Oxide) | ≤ 0.1 |
| Na₂O (Sodium Oxide) | ≤ 0.1 |
| Loss on Ignition (LOI) | 13 – 14% |
5. Industries & Factories Using This Product
Iranian kaolin and ball clay are utilized across several key industries. Major consumers include ceramics and tile manufacturers, sanitaryware and porcelain producers, paper and paperboard mills, paint and coating manufacturers, refractory producers, rubber and plastics processors, and fiberglass manufacturers.
6. Key Properties & Advantages
Iranian kaolin and ball clay offer high alumina content (39.5% Al₂O₃) for excellent refractoriness, high whiteness for aesthetic and optical applications, fine particle size and plate-like morphology for smooth surface finishes, excellent plasticity for easy forming, high green strength and refractoriness (ball clay withstands ≥1500°C), and chemical inertness for use in aggressive environments.
7. Chemical Formula / Size & Packaging Specifications
Chemical Formula: Al₄(Si₄O₁₀)(OH)₈. Molecular Weight: 258.16 g/mol. CAS Number: 1332-58-7. Packaging Options: 25 kg multi-wall paper bags with inner PE liner, 1 MT jumbo bags with discharge spouts, and custom packaging upon request.
8. Available Grades, Sizes, Qualities & Custom Colors
| Grade | Al₂O₃ Content | Fe₂O₃ Content | Typical Application |
|---|---|---|---|
| White (High Alumina) | 39.5% | ≤ 0.5% | Ceramics, refractories |
| Premium (Low Iron) | 38 – 39% | ≤ 0.3% | Paper coating, high-white ceramics |
| Ball Clay | 30 – 35% | ≤ 1.0% | Sanitaryware, tiles, refractories |
Quality Grades: Technical Grade, Ceramic Grade, and Paper Grade. Custom Options: Custom particle sizes and packaging available upon request.
9. Sahi Rasa Supply Chain Department Services for International Factories
The Supply Chain Department at Sahi Rasa Company provides end-to-end supply chain services for international factories procuring Iranian kaolin and ball clay.
Monthly & Weekly Supply Planning: The department collaborates with client factories to establish supply schedules based on production forecasts, inventory levels, and lead times.
Sourcing & Procurement: The procurement team conducts rigorous supplier qualification, evaluating alumina content, whiteness, particle size, and processing capability.
Sample Dispatch: Clients can request free or commercial samples of kaolin and ball clay, accompanied by a Certificate of Analysis (COA).
Custom Manufacturing (OEM/ODM): The department coordinates OEM/ODM production with qualified processing partners for custom grades, particle sizes, and packaging.
Pre-Shipment Quality Control: The department implements pre-shipment quality control at the supplier's facility before loading. The QC team verifies Al₂O₃ content, Fe₂O₃ content, whiteness, moisture content, and particle size distribution.
Loading & Handling: Professional loading and handling procedures protect product integrity during container stuffing.
Export Documentation: The department prepares and manages all export documentation required for kaolin shipments.
International Transportation: The department arranges international transportation via sea freight (FCL/LCL), air freight, or land transport.
Export Customs Clearance: Customs brokers handle export customs clearance at ports and border crossings.
Import Customs Clearance: For clients requiring support at destination, the department can arrange import customs clearance through trusted local partners.
On-Site Technical Team Deployment: For large-scale ceramic or paper operations, the department can deploy a technical team to the client's factory.
Training & Knowledge Transfer: The department offers training programs covering proper handling, storage, and incorporation of kaolin into ceramic bodies, paper coatings, and paint formulations.
10. Why Choose the Supply Chain Department at Sahi Rasa Company?
The Supply Chain Department at Sahi Rasa Company offers reliable Iranian supply of high-alumina kaolin and ball clay, quality assurance with pre-shipment QC and full documentation, flexible logistics solutions, comprehensive services, competitive pricing, and regional expertise in markets including Afghanistan, Iraq, Kurdistan, Tajikistan, Uzbekistan, Armenia, Georgia, Turkey, and Syria.
11. Ordering & Contact Information
International customers can place orders through the Request for Quotation (RFQ) form located at the bottom of this page. The expert team at the Supply Chain Department at Sahi Rasa Company will respond to all inquiries as soon as possible, providing complete information on pricing, delivery schedules, shipping terms, and export documentation.
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