Description

Tripoli CAS NO 1317-95-9 is a naturally occurring, fine-grain siliceous sedimentary rock, primarily composed of microcrystalline silica (silicon dioxide, SiO₂). This material is valued for its mild abrasive properties and is a key component in polishing and buffing compounds across numerous industries. It is essential for manufacturers and finishers seeking to achieve smooth, high-luster surfaces on metals, plastics, and other materials. Key sectors that rely on this product include automotive refinishing, metal fabrication, jewelry making, and optical lens manufacturing.

Application

• Metal Polishing and Finishing: Used in bar compounds, liquid polishes, and buffing wheels to polish and deburr steel, aluminum, brass, and other non-ferrous metals to a high shine.
• Automotive and Aerospace Refinishing: A critical abrasive in compounds for removing oxidation, light scratches, and swirl marks from clear coats and paint, as well as polishing aircraft components.
• Stone and Lapidary Work: Employed in the final polishing stages for marble, granite, and gemstones to achieve a brilliant, reflective finish.
• Woodworking and Furniture: Used in fine rubbing compounds to smooth lacquers, varnishes, and shellac finishes between coats and for final preparation.
• Optical and Precision Instrument Manufacturing: Serves as a gentle abrasive for polishing glass lenses, precision optics, and delicate instrument components.
• Jewelry and Silversmithing: Essential for buffing and bringing out the luster on precious metals, silverware, and intricate jewelry pieces.
• Filler and Extender: Acts as an inexpensive, inert filler in paints, plastics, adhesives, and rubber compounds to modify consistency and reduce cost.
• Filtration Media: Utilized in some filtration systems due to its porous, diatomaceous structure for filtering liquids.

Basic Information

Product Name	Tripoli
CAS No.	1317-95-9
Molecular Formula	SiO₂
Molecular Weight	60.08 g/mol
Synonyms	Tripoli Powder; Rottenstone; Polishing Tripoli; Soft Silica; Amorphous Silica; Siliceous Earth; Diatomaceous Earth (certain grades); Tripolite; Silica Flour (fine grades); Arkansas Stone; Buffing Compound Abrasive; Non-crystalline Silica
EINECS	215-683-2

Quality Control

Our Tripoli products undergo rigorous quality testing to ensure consistent particle size distribution, purity, and abrasive performance. We control key parameters such as silica content, moisture, and grit size to meet the specific demands of polishing and filler applications. While typically supplied as an industrial grade, our quality management system ensures batch-to-batch consistency. Certificates of Analysis (COA) detailing lot-specific data are available upon request.

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 away from incompatible materials. Although not highly hygroscopic, prolonged exposure to high humidity should be avoided to prevent caking.

Specification

Item	Specification
Appearance	Fine, white to pink or gray powder
Assay (SiO₂)	≥ 85%
Moisture Content	≤ 5.0%
pH (in water)	6.0 - 8.0
Particle Size (Typical)	Customizable (e.g., 5-50 microns)
Loss on Ignition	≤ 10.0%
Oil Absorption	Contact for details
Specific Gravity	~2.0 - 2.5

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