Description

Petalite CAS NO 1302-66-5 is a lithium aluminum silicate mineral prized for its unique combination of low thermal expansion and high chemical durability. This material is critical for industrial applications requiring exceptional thermal shock resistance and dimensional stability. It is a key raw material for manufacturers in the ceramics, glass-ceramics, and specialty glass industries, where its properties enable the production of high-performance components.

Application

• Glass-Ceramic Cooktops and Cookware: The primary industrial use, where its near-zero thermal expansion coefficient is essential for creating durable, heat-resistant surfaces.
• Technical Ceramics and Refractories: Used in formulations for kiln furniture, insulating materials, and other high-temperature structural components.
• Specialty Glass Production: Acts as a source of lithium oxide (Li₂O) and alumina (Al₂O₃) in the manufacture of low-expansion, chemically resistant glass.
• Ceramic Glazes and Frits: Imparts stability and lowers the melting temperature in glaze formulations for tiles and sanitaryware.
• Flux in Welding Rod Coatings: Improves arc stability and slag characteristics in certain welding applications.
• Source of Lithium: An important ore mineral for lithium extraction, feeding into the battery, lubricant, and pharmaceutical supply chains.

Basic Information

Product Name	Petalite
CAS No.	1302-66-5
Molecular Formula	LiAlSi₄O₁₀
Molecular Weight	372.21 g/mol
Synonyms	Lithium Aluminum Silicate; Castorite; LiAlSi₄O₁₀; Petalite (mineral); Lithium Aluminosilicate; INS 556; EINECS 215-122-9
EINECS	215-122-9

Quality Control

Our Petalite is sourced and processed under strict quality protocols to ensure batch-to-batch consistency for industrial applications. Quality is verified through analysis of key parameters including chemical composition (Li₂O, Al₂O₃, SiO₂ content), particle size distribution, and thermal expansion properties. A Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee material integrity and support your production quality assurance.

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 when not in use to prevent moisture absorption and contamination from other materials.

Specification

Item	Specification
Appearance	White to off-white powder
Lithium Oxide (Li₂O) Content	3.5 - 4.5 %
Aluminum Oxide (Al₂O₃) Content	16 - 20 %
Silicon Dioxide (SiO₂) Content	75 - 80 %
Loss on Ignition (LOI)	< 1.0 %
Particle Size (D50)	Customizable (e.g., 5µm, 10µm, 45µm)
Thermal Expansion Coefficient (25-1000°C)	< 2.0 x 10⁻⁶ /°C

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