Description

Silver Kaolin is a specialized, high-purity form of kaolin clay, a naturally occurring hydrated aluminum silicate, distinguished by its unique silver-white appearance and refined particle properties. This material is valued for its exceptional inertness, whiteness, and functional characteristics, making it a critical performance additive in advanced industrial formulations. It is essential for manufacturers in sectors such as high-performance coatings, specialty polymers, advanced ceramics, and premium paper production, where consistent quality and specific physical properties are paramount for product performance.

Application

• High-Performance Coatings & Paints: Acts as an extender and functional filler to enhance opacity, improve suspension, control rheology, and provide a smooth finish in industrial and architectural coatings.
• Specialty Polymers & Masterbatches: Used as a reinforcing filler and whitening agent in engineering plastics, elastomers, and color masterbatches to improve mechanical properties and color consistency.
• Advanced Ceramics & Refractories: Serves as a key raw material in the formulation of technical ceramics, electrical insulators, and refractory linings due to its high thermal stability and chemical inertness.
• Premium Paper & Board Coating: Functions as a high-brightness coating pigment to improve printability, surface smoothness, and gloss in high-quality paper and packaging materials.
• Cosmetics & Personal Care: Utilized as an absorbent, texture enhancer, and opacifying agent in foundations, powders, and skincare products for its softness and purity.
• Adhesives, Sealants, and Caulks (ASC): Improves viscosity control, sag resistance, and overall stability in adhesive and sealant formulations.
• Pharmaceuticals: Can be used as an excipient in tablet manufacturing, acting as a diluent or disintegrant, subject to meeting appropriate pharmacopeial standards.
• Catalyst & Chemical Carrier: Provides a stable, high-surface-area inert support for various catalysts and active ingredients in chemical processes.

Basic Information

Product Name	Silver Kaolin
CAS No.	119144-77-3
Molecular Formula	Al2Si2O5(OH)4 • nH2O
Molecular Weight	258.16 g/mol (Anhydrous basis)
Synonyms	Kaolin, Light; China Clay; Hydrated Aluminum Silicate; Aluminum Silicate Hydroxide; Porcelain Clay; White Cosmetic Clay; Bolus Alba; E559; CI 77004; AGALITE
EINECS	310-194-1

Quality Control

Our Silver Kaolin is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Quality parameters are rigorously tested against established specifications, which may include chemical composition, particle size distribution, brightness, residue, moisture content, and pH. While specific grades can be tailored, we ensure compliance with relevant industrial standards. A Certificate of Analysis (COA) documenting key quality attributes is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect flow properties and performance.

Specification

Item	Specification
Appearance	Fine, silver-white powder
Identification (IR)	Conforms to standard
Assay (Al2O3)	≥ 37.0 %
Loss on Drying (LOD)	≤ 1.5 %
pH (10% slurry)	4.5 - 7.5
Particle Size (< 2μm)	≥ 80 %
Brightness (GE)	≥ 88 %
Residue on 325 Mesh	≤ 0.5 %

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