Description

Sepiolite is a naturally occurring, fibrous hydrated magnesium silicate clay mineral valued for its exceptional absorbency, high surface area, and rheological properties. This versatile material is crucial for industries requiring efficient liquid absorption, viscosity control, and carrier functionality. Key sectors that rely on Sepiolite include agriculture, pet care, industrial absorbents, paints & coatings, and construction.

Application

• Industrial & Hazardous Liquid Absorbents: Used in granular or powdered form for spill control and cleanup of oils, solvents, and chemicals.
• Carrier & Anti-Caking Agent: Functions as an inert, free-flowing carrier for pesticides, fertilizers, animal feed supplements, and other powdered formulations.
• Pet Care Products: A primary component in clumping and non-clumping cat litters due to its superior moisture absorption and odor control.
• Rheology Modifier: Acts as a thickening and thixotropic agent in paints, coatings, sealants, adhesives, and drilling muds.
• Construction Materials: Enhances the workability, water retention, and mechanical properties of plasters, mortars, and specialty cements.
• Filtration Aid: Used in the filtration of beverages, oils, and other liquids to improve clarity and flow rates.
• Catalyst & Polymer Support: Serves as a low-cost, high-surface-area support material for catalysts and as a filler in polymer composites.
• Soil Conditioner: Improves water retention and aeration in agricultural and horticultural soils, particularly in sandy substrates.

Basic Information

Product Name	Sepiolite
CAS No.	63800-37-3
Molecular Formula	Mg4Si6O15(OH)2·6H2O
Molecular Weight	~ 780 g/mol (Variable)
Synonyms	Meerschaum; Hydrated Magnesium Silicate; Attapulgite (related clay); Mountain Leather; Magnesium Phyllosilicate; Sepiolite Clay; French Chalk (industrial grade); α-Sepiolite
EINECS	264-373-3

Quality Control

Our Sepiolite is sourced and processed to meet stringent quality parameters for various industrial applications. We implement rigorous in-process and final batch testing to ensure consistency in key properties such as absorbency, viscosity, particle size distribution, and chemical composition. Certificates of Analysis (COA) detailing lot-specific results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store in a cool, dry, and well-ventilated area. Keep the container tightly sealed when not in use to prevent moisture absorption and caking. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Off-white to light grey powder
Identification (IR)	Conforms to Sepiolite standard
Loss on Drying	< 12.0 %
pH (in water suspension)	7.0 - 9.5
Bulk Density	Contact for details
Particle Size (Typical)	Contact for details
Oil Absorption	Contact for details
Heavy Metals (as Pb)	< 20 ppm

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