Description

Diatomaceous Earth CAS NO 68855-54-9 is a naturally occurring, soft, siliceous sedimentary rock composed of the fossilized skeletal remains of diatoms. This unique structure provides a highly porous, lightweight, and chemically inert material with exceptional filtration and absorption properties. It is a critical industrial mineral for a wide range of sectors, including food & beverage processing, water purification, agriculture, and specialty chemical manufacturing, where consistent quality and performance are paramount.

Application

• Filtration Aid & Clarification: Widely used as a filter media and pre-coat for the filtration of beverages (beer, wine, juice), edible oils, sugars, syrups, pharmaceuticals, and industrial chemicals to remove fine particulates and achieve brilliant clarity.
• Functional Filler & Carrier: Acts as an anti-caking agent, flow aid, and inert carrier for pesticides, fertilizers, animal feed, and liquid chemicals due to its high absorption capacity and stability.
• Natural Insecticide: Used in agriculture and stored grain protection as a mechanical insecticide, where its abrasive and absorbent properties damage the exoskeletons of insects, leading to dehydration.
• Absorbent & Spill Control: Employed for absorbing and stabilizing liquid spills, including oils and hazardous liquids, in industrial and environmental cleanup applications.
• Mild Abrasive & Polishing Agent: Incorporated into metal polishes, toothpaste, and cleaning products for its gentle yet effective abrasive qualities.
• Construction & Building Materials: Used as a lightweight aggregate, filler in plasters and mortars, and for thermal and acoustic insulation.
• Catalyst Support: Serves as a porous, high-surface-area support material for catalysts in various chemical processes.

Basic Information

Product Name	Diatomaceous Earth
CAS No.	68855-54-9
Molecular Formula	SiO₂·nH₂O (Amorphous Silica)
Molecular Weight	60.08 (anhydrous basis)
Synonyms	Diatomite; Kieselguhr; Fossil Shell Flour; Amorphous Silica; DE; Infusorial Earth; Diatomaceous Silica; Celite® (Trade Name); D.E.
EINECS	272-489-0

Quality Control

Our Diatomaceous Earth is produced and tested to meet stringent quality standards for its intended application, whether food-grade (FCC), feed-grade, or industrial. Quality parameters such as particle size distribution, permeability, wet density, and chemical composition are rigorously monitored. A Certificate of Analysis (COA) is provided with each shipment to ensure traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. The product is hygroscopic and may absorb moisture from the atmosphere, which can affect flow properties.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (SiO₂ Content)	≥ 85%
Loss on Drying (LOD)	≤ 10%
pH (in water)	6.0 - 10.0
Particle Size (Typical)	Customizable (e.g., 5-50 microns)
Wet Density	Contact for details
Permeability	Contact for details
Heavy Metals (as Pb)	≤ 10 ppm (Food Grade)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.