Description

Stishovite is a high-pressure polymorph of silicon dioxide (SiO₂), distinguished by its unique tetragonal crystal structure and exceptional hardness. This material is of significant industrial and scientific interest due to its extreme physical properties, which are a direct result of its dense atomic arrangement. It is a critical component for advanced research in geology and materials science, as well as for specialized industrial applications requiring ultra-hard, stable ceramics. Global procurement teams and R&D departments in sectors such as advanced abrasives, high-performance composites, and geological simulation rely on a consistent, high-purity supply of Stishovite CAS NO 13778-37-5 for their most demanding projects.

Application

• Advanced Abrasives & Polishing: Utilized as an ultra-hard component in specialized grinding media, lapping compounds, and precision polishing slurries for hard materials.
• High-Pressure Research & Calibration: Serves as a key reference material and pressure marker in diamond anvil cell experiments and geological studies to simulate deep-Earth conditions.
• Reinforcement for Ceramic Composites: Incorporated as a high-strength, high-modulus filler to enhance the toughness, wear resistance, and thermal stability of advanced ceramic matrix composites.
• Specialized Refractories: Used in formulations for linings and components exposed to extreme mechanical stress and high temperatures.
• Geological & Planetary Science: Employed in laboratory studies to understand impact cratering processes, meteorite composition, and the mineralogy of planetary interiors.
• Protective Coatings: Acts as a hard phase in coatings designed for exceptional abrasion and erosion resistance.

Basic Information

Product Name	Stishovite
CAS No.	13778-37-5
Molecular Formula	O2Si
Molecular Weight	60.08 g/mol
Synonyms	Silicon dioxide (stishovite); Rutile-type silicon dioxide; High-pressure silica; SiO2 (tetragonal); Dioxosilane (high-pressure form); Stishovite silica; Synthetic stishovite
EINECS	Contact for details

Quality Control

Our Stishovite is produced and handled under strict quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including X-ray diffraction (XRD) for phase identification and purity verification. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as crystalline phase content, particle size distribution, and trace elemental impurities. Our quality management system is designed to meet the exacting standards of industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at ambient temperature (15-25°C). Keep the container sealed to minimize exposure to atmospheric moisture and contaminants. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (XRD)	Conforms to Stishovite reference pattern
Crystalline Phase Purity (Stishovite)	≥ 95%
Primary Particle Size (D50)	1 - 10 µm (or as specified)
Loss on Drying (105°C)	≤ 2.0 %
Trace Metals (ICP-MS)	≤ 500 ppm total

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