Diatomite Calcined 90% Made in Iran
Iranian diatomite, also known as diatomaceous earth (DE), kieselguhr, or fossil flour, is a naturally occurring siliceous sedimentary rock composed of the fossilized skeletons of diatoms. Calcined diatomite is produced by heating raw diatomite to high temperatures, which removes organic matter and increases porosity and brightness. With a silica content of up to 90% and a unique porous structure, it offers high particle retention, low hydraulic resistance, and excellent filtration efficiency. It is widely used in filtration, insulation, fillers, and absorbents.
The Supply Chain Department at Sahi Rasa Company supplies Iranian calcined diatomite for export to Afghanistan, Iraq, the Kurdistan Region, Tajikistan, Uzbekistan, Armenia, Georgia, Turkey, and Syria. Whether for water filtration, beer and wine clarification, insulation, or paint fillers, 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 has established a reputation for supplying high-quality diatomite products to international markets. Diatomite is a unique mineral with properties that are difficult to replicate synthetically: its high porosity, low density, and intricate skeletal structure make it ideal for filtration and insulation. The department's technical team understands these properties and works with clients to select the right grade of calcined diatomite for their specific application.
The department sources diatomite from Iranian deposits known for their high silica content and consistent quality. The raw diatomite is calcined at controlled temperatures to achieve the desired porosity and brightness. The calcined material is then classified into various grades, from fine powders for filtration to coarse granules for insulation. The department's quality control laboratory tests each batch for silica content, porosity, particle size distribution, and filtration performance.
For clients in Afghanistan, the Kurdistan Region, Iraq, Tajikistan, Uzbekistan, Armenia, Georgia, Turkey, and Syria, the Supply Chain Department at Sahi Rasa Company offers a reliable supply chain with flexible delivery options and comprehensive technical support.
2. Product Overview
Diatomite is a siliceous sedimentary rock formed from the accumulation of diatom skeletons over millions of years. Diatoms are microscopic algae that secrete a cell wall made of silica. When they die, their skeletons settle to the bottom of lakes and oceans, forming deposits of diatomite. The unique structure of diatomite—millions of tiny pores per gram—gives it exceptional filtration and absorption properties.
Calcined diatomite is produced by heating raw diatomite to temperatures between 800°C and 1,200°C. This process removes organic matter and water, increases the silica content, and enhances the brightness and porosity of the material. The calcined product is then milled and classified into various grades.
In filtration, calcined diatomite is used as a filter aid in the clarification of beverages (beer, wine, juice), water treatment, swimming pool filters, and industrial process filtration. Its high particle retention and low hydraulic resistance make it ideal for these applications. In insulation, diatomite is used in high-temperature insulation bricks, pipe insulation, and refractory materials. In fillers, it is used in paints, plastics, and rubber to improve matting, rheology, and mechanical properties. In absorbents, it is used to absorb spills and as a carrier for pesticides and fertilizers.
The Supply Chain Department at Sahi Rasa Company offers calcined diatomite in multiple grades, including fine powder, medium powder, and granular forms.
3. Physical Specifications Table
| Parameter | Specification |
|---|---|
| Product Name | Diatomite (Calcined) |
| Synonyms | Diatomaceous Earth, DE, Kieselguhr, Fossil Flour |
| Appearance | White to off-white powder |
| Silica Content (SiO₂) | 85 – 90% |
| Porosity | 80 – 90% |
| Bulk Density | 0.2 – 0.4 g/cm³ |
| Specific Gravity | 2.0 – 2.3 g/cm³ |
| Melting Point | 1,600°C |
| Mesh Sizes | 100, 200, 325, 600 |
| Moisture Content | ≤ 0.5% |
| pH | 6.0 – 8.0 |
| Oil Absorption | 100 – 200 g/100g |
| Packaging | 25 kg bags, 1 MT jumbo bags |
4. Chemical Specifications Table
| Component | Content (%) |
|---|---|
| SiO₂ | 85 – 90 |
| Al₂O₃ | 3 – 6 |
| Fe₂O₃ | 1 – 2 |
| CaO | 0.5 – 1 |
| MgO | 0.5 – 1 |
| Loss on Ignition | 2 – 5% |
5. Industries & Factories Using This Product
Iranian calcined diatomite is used in beverage filtration, water treatment, swimming pool filtration, industrial process filtration, high-temperature insulation, paint and coating fillers, plastic and rubber fillers, and absorbent products.
6. Key Properties & Advantages
High porosity, high silica content, excellent filtration efficiency, low bulk density, thermal stability, chemical inertness, and high absorption capacity.
7. Chemical Formula / Size & Packaging Specifications
Chemical Formula: SiO₂·nH₂O (amorphous). CAS Number: 61790-53-2. Packaging Options: 25 kg bags, 1 MT jumbo bags.
8. Available Grades, Sizes, Qualities & Custom Colors
| Grade | Mesh Size | Application |
|---|---|---|
| Fine | 325 – 600 | Beverage filtration |
| Medium | 200 – 325 | Water treatment |
| Coarse | 100 – 200 | Insulation, absorbents |
Quality Grades: Food Grade, Industrial Grade. Custom Options: Custom sizing and packaging.
9. Sahi Rasa Supply Chain Department Services for International Factories
The department provides monthly supply planning, sourcing, sample dispatch, custom manufacturing, pre-shipment QC, loading, export documentation, international transportation, customs clearance, on-site technical support, and training.
10. Why Choose the Supply Chain Department at Sahi Rasa Company?
High-quality calcined diatomite, consistent performance, competitive pricing, and reliable export services.
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.
Export & Transportation
Sahi Rasa's Commercial & Transportation Department operates through an active network of representatives at major land borders and seaports, coordinating export, customs clearance, transportation and import procedures to your destination.
Border & Customs Network
Active representatives at key Iranian land borders and commercial crossings provide customs clearance, export coordination and cross-border logistics for industrial and commercial shipments.
Cross-Border Transportation
We arrange suitable vehicles and transportation solutions based on cargo type, packaging, route, destination and delivery requirements across neighboring markets.
Land Border Crossings
Key Iranian border routes serving Iraq, the Caucasus, Central Asia, Afghanistan and Pakistan.
Tamarchin
Haji Omran • Iraqi Kurdistan
Erbil & Duhok
Bashmaq
Iraqi Kurdistan
Sulaymaniyah & surrounding areas
Parviz Khan
Iraq
Kalar & nearby destinations
Khosravi
Iraq
Central Iraqi destinations
Shalamcheh
Iraq
Southern Iraq routes
Bileh Savar
Azerbaijan
Northwestern route
Bazargan
Turkey
Western trade route
Poldasht
Armenia & Azerbaijan
Regional routes
Islam Qala
Afghanistan
Herat & western Afghanistan
Lotfabad
Turkmenistan
Central Asian routes
Sarakhs
Turkmenistan
Central Asia
Milak
Afghanistan
Eastern & southern routes
Mil 78
Afghanistan
Major eastern route
Taftan
Pakistan
Cross-border trade route
Rimdan
Pakistan
Southern route
Seaports & Maritime Logistics
Port-based logistics solutions for international shipments, containerized cargo and bulk transportation.
Chabahar Port
Indian Ocean
International maritime logistics
Mahshahr Port
Persian Gulf
Industrial & bulk cargo
Bandar Abbas
Persian Gulf
Container & general cargo
Shahid Rajaee
Bandar Abbas
Major container gateway
Amirabad Port
Caspian Sea
Regional maritime trade
Anzali Port
Caspian Sea
Regional & international trade
Export Destinations
Road and multimodal transportation to key markets across the region.
Transportation Fleet
Vehicle solutions selected according to cargo type, loading requirements and destination.
Road Tankers
Liquid, chemical, petroleum and bulk liquid transportation.
Curtainsider
Flexible transport for cartons, pallets, bags and general cargo.
Refrigerated Trucks
Temperature-controlled transportation for sensitive cargo.
Flatbed Trailers
Machinery, equipment, oversized and palletized cargo.
Mini Trucks
Regional deliveries and medium-volume commercial shipments.
3-Ton Pickups
Smaller cargo, local delivery and flexible last-mile transport.
Custom Transport
Specialized vehicles arranged according to cargo requirements.
Need Export & Transportation Support?
Fill out the offer request form or email us directly: Tell us your product, quantity, packaging and destination. Our commercial team will coordinate the suitable route and transportation solution.
Export Packaging Options
Flexible packaging solutions designed around your product, quantity, transportation method and destination requirements.
Bulk
Bulk solid, powder and liquid shipments for high-volume industrial and commodity products.
Bulk CargoDrums & Barrels
Plastic, HDPE and steel drums for chemicals, oils, petroleum products and industrial liquids.
20–250 LBags & Sacks
PP, PE, woven, kraft and multi-layer bags for powders, minerals, chemicals and granules.
Industrial BagsJumbo Bags
FIBC and jumbo bags with liners, pallets or metal cages for high-volume bulk materials.
FIBCPalletized
Cartons, bags, drums and boxes secured on export pallets with stretch or shrink wrapping.
Export ReadyCartons & Boxes
Corrugated export cartons, master boxes and heavy-duty packaging for organized shipments.
BoxedIBC Containers
Intermediate bulk containers for efficient handling of liquid chemicals, oils and industrial materials.
Up to 1,000 LTank Containers
ISO tank containers and specialized tanks for liquid, chemical and petroleum products.
ISO TankWooden Crates
Export-grade wooden crates and cases for machinery, equipment and heavy industrial products.
Heavy DutyMetal Frames
Steel frames, cages and metal pallets for reinforced protection during international transportation.
ReinforcedSpecialized Packaging
Customized solutions for pharmaceutical, laboratory, medical, hazardous and sensitive materials.
CustomCustom Solutions
Packaging configured to product specifications, handling requirements, destination and shipping conditions.
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