Description

Fuller's Earth CAS NO 8031-18-3 is a naturally occurring, highly adsorptive clay material primarily composed of hydrous aluminum silicates. Its exceptional surface area and porous structure make it a powerful agent for purification, decolorization, and filtration across numerous industries. This versatile adsorbent is essential for manufacturers and processors requiring reliable, cost-effective solutions for removing impurities, contaminants, and unwanted colors from liquids and gases. Key sectors that depend on its performance include edible oil refining, chemical processing, and environmental remediation.

Application

• Edible Oil & Fat Processing: Primary use for bleaching and decolorizing vegetable oils (e.g., soybean, palm, canola) and animal fats to improve color, flavor, and stability.
• Chemical & Petrochemical Industry: Used as a catalyst carrier, a decolorizing agent for mineral oils, waxes, and organic chemicals, and in the purification of various process streams.
• Environmental Remediation: Employed in spill cleanup and wastewater treatment to adsorb oils, greases, and certain organic contaminants.
• Pharmaceutical & Cosmetic Manufacturing: Acts as a clarifying and filtering agent in the production of pharmaceuticals, and as an ingredient in facial masks and clarifying products.
• Foundry & Industrial Coatings: Used as a bonding agent in foundry sands for metal casting and as an extender or flatting agent in paints and coatings.
• Animal Feed & Agriculture: Serves as an anti-caking agent in feed and as a carrier for pesticides and fertilizers.
• Purification of Waxes & Fats: Effectively removes color bodies and impurities from natural and synthetic waxes.
• General Filtration: Used in filter aids and filter media for a wide range of industrial filtration applications.

Basic Information

Product Name	Fuller's Earth
CAS No.	8031-18-3
Molecular Formula	Complex hydrous aluminum silicate (Variable composition)
Molecular Weight	N/A (Natural mineral mixture)
Synonyms	Bleaching Earth; Activated Clay; Bleaching Clay; Decolorizing Earth; Montmorillonite Clay (specific types); Attapulgite (specific types); Floridin; Filter Clay; Adsorbent Clay; Filtration Earth; Mineral Bleach
EINECS	232-455-8

Quality Control

Our Fuller's Earth is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and performance. Key parameters such as bleaching efficiency, moisture content, particle size distribution, and acid activity are rigorously controlled. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing the product's specifications. Our quality commitment ensures the material meets the demanding requirements of the food, pharmaceutical, and industrial sectors.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect performance. Keep away from incompatible strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Fine, free-flowing powder
Color	Off-white to light tan
Bleaching Efficiency (Lovibond)	Contact for details
Moisture Content	< 12%
Particle Size (Passing 200 mesh)	> 90%
pH (10% Slurry)	3.0 - 7.0 (Grade dependent)
Acid Soluble Iron (as Fe)	< 0.1%
Bulk Density	Contact for details

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