Buy Diatomaceous Earth In Bulk
Buy Diatomaceous Earth in Bulk
Diatomaceous earth (DE) is a naturally occurring, soft siliceous sedimentary rock that can be crushed into a fine powder. Its primary component is amorphous silica, which gives it distinct absorbent and filtration characteristics. When sourced in bulk, DE provides an economical solution for industries requiring large volumes of a consistent, inorganic material.
Product Overview
The material is produced by milling and classifying raw diatomite to achieve specific particle size distributions. Bulk shipments are typically conveyed in pneumatic tankers or packaged in multi-wall bags, depending on customer handling capabilities. The product contains no organic additives and is chemically inert under normal processing temperatures.
Technical Specifications
| Parameter | Typical Value | Notes |
|---|---|---|
| Silica (SiO2) content | 85‑95% | Amorphous phase; varies with source |
| Loose bulk density | 0.30‑0.45 g/cm³ | Dependent on particle size and moisture |
| Specific surface area | 15‑30 m²/g | Measured by BET nitrogen adsorption |
| pH (suspension) | 7‑9 | Near neutral; suitable for most processes |
| Moisture content | ≤0.5% | Controlled during drying |
Key Applications
In filtration, DE acts as a porous filter aid that captures fine particulates while maintaining high flow rates. Its irregular particle shape creates a cake with high void fraction, reducing pressure drop across filter media. Industries such as beverage processing, pharmaceutical manufacturing, and water treatment rely on this property for clarifying liquids without adding chemical agents.
As an absorbent, DE can trap oils, solvents, and spilled hydrocarbons due to its high surface area and internal porosity. It is used in spill control kits, industrial floor absorbents, and as a carrier for active ingredients in pesticide formulations. The material’s inert nature ensures it does not react with absorbed substances, simplifying disposal or recycling.
In agriculture, DE is applied as a mechanical insecticide. The sharp edges of the silica particles damage the exoskeleton of insects, leading to dehydration. Because the mode of action is physical, resistance development is minimal, and the product leaves no chemical residue on crops.
Quality Control
Each batch undergoes particle size analysis using laser diffraction to verify conformity with the specified distribution. Chemical composition is confirmed by X‑ray fluorescence (XRF) to ensure silica content falls within the agreed range. Moisture is measured by loss‑on‑drying at 105 °C. Results are documented in a material data sheet supplied with every shipment.
Packaging and Ordering
Bulk DE can be loaded directly into pneumatic tankers for delivery to silos or shipped in 25 kg multi‑wall paper bags with an inner polyethylene liner. For larger volumes, 500 kg flexible intermediate bulk containers (FIBCs) are available. All packaging options are designed to minimize product degradation and prevent moisture ingress during transit.
To receive a formal quotation, please provide the required volume, preferred particle size range, and delivery destination. Our technical team will review the specifications and confirm lead times, which typically range from 2 to 4 weeks depending on order size and logistics.
Frequently Asked Questions
Can the particle size be customized? Yes, milling and classification can be adjusted to meet specific d50 values ranging from 5 µm to 50 µm.
What information is needed for a quote? Required details include target quantity (tons or bags), desired bulk density or porosity limits, and any applicable industry standards (e.g., FCC, Food Grade).
Is the product available in food‑grade certification? Food‑grade diatomaceous earth is offered upon request and complies with FCC regulations for use as a filter aid and processing aid.