Description

Keatite CAS NO 17679-64-0 is a synthetic, high-purity crystalline silica polymorph with a unique tetragonal structure. This material is valued for its exceptional thermal stability and controlled porosity, making it a critical component in advanced material science and catalysis. It is primarily utilized by researchers and manufacturers in the ceramics, electronics, and specialty chemical synthesis industries for developing high-performance composites, catalyst supports, and precision optical components.

Application

• Advanced Ceramics & Refractories: As a high-stability silica phase for formulating specialized ceramics with enhanced thermal shock resistance.
• Catalyst & Catalyst Support: Serving as a robust, high-surface-area support material for heterogeneous catalysts in chemical synthesis.
• Electronic Materials: Used in the research and development of dielectric layers, substrates, and other electronic components requiring precise silica phases.
• Composite Materials: As a functional filler to modify the thermal and mechanical properties of polymer and metal matrix composites.
• Precision Optics & Glass Science: A subject of study and a potential precursor for specialty glasses and optical materials with specific refractive properties.
• Geochemical & Material Research: A reference material for studying silica polymorph transformations and high-pressure/temperature phase behavior.

Basic Information

Product Name	Keatite
CAS No.	17679-64-0
Molecular Formula	SiO2
Molecular Weight	60.08 g/mol
Synonyms	Keatite Silica; Silica, keatite; Tetragonal Silica; High-Pressure Silica Polymorph; Synthetic Keatite; K-Silica; Silicon Dioxide (Keatite form)
EINECS	Contact for details

Quality Control

Our Keatite is produced under controlled conditions to ensure batch-to-batch consistency and high purity. Quality is verified through a suite of analytical techniques including X-ray diffraction (XRD) for phase identification, spectroscopic methods, and particle size analysis. Certificates of Analysis (COA) detailing purity, crystalline phase, and physical characteristics are provided with each shipment to support your quality assurance protocols.

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 the container sealed to minimize exposure to atmospheric moisture and contaminants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (XRD)	Conforms to Keatite phase pattern
Assay (as SiO2)	≥ 99.0%
Crystalline Phase Purity	≥ 95% (by XRD)
Loss on Drying	≤ 1.0%
Particle Size (D50)	Customizable (e.g., 1-50 µm)
Surface Area (BET)	Customizable

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