Description

Emery CAS NO 12415-34-8 is a naturally occurring, high-hardness mineral abrasive primarily composed of corundum (crystalline aluminum oxide) and other minerals such as magnetite and hematite. Its exceptional durability and sharp, angular particle structure make it a critical material for precision grinding, surface finishing, and polishing applications across heavy industry. This product is essential for manufacturers and fabricators in sectors requiring reliable, consistent abrasive performance for material removal and surface preparation.

Application

• Metalworking and Fabrication: Used in grinding wheels, coated abrasives (sandpaper, belts), and blasting media for deburring, weld cleaning, and surface conditioning of steel and alloys.
• Optical Lens and Glass Manufacturing: Employed in fine-grit formulations for grinding and polishing glass, lenses, and precision optical components to achieve high-clarity finishes.
• Stone and Concrete Processing: A key abrasive in cutting, grinding, and polishing tools for natural stone, engineered stone, and concrete surfaces.
• Woodworking and Refinishing: Integrated into sanding belts and discs for smoothing wood surfaces and preparing them for staining or sealing.
• Anti-Slip Surface Creation: Applied in epoxy or paint coatings for floors, decks, and walkways to provide enhanced traction and safety.
• Lapping and Precision Finishing: Used in loose grain or paste form for achieving ultra-fine surface finishes on mechanical parts and tools.

Basic Information

Product Name	Emery
CAS No.	12415-34-8
Molecular Formula	Al₂O₃ (major component)
Molecular Weight	101.96 g/mol (for Al₂O₃)
Synonyms	Emery Stone; Natural Corundum; Aluminum Oxide Emery; Abrasive Emery; Corundum-Emery; Black Emery; Emery Abrasive; Emery Powder; Smirgel
EINECS	Contact for details

Quality Control

Our Emery is processed and graded to meet stringent industrial specifications, ensuring consistent particle size distribution, hardness, and chemical inertness. Quality is verified through a battery of tests including sieve analysis, Mohs hardness testing, and chemical composition analysis. We provide full traceability and Certificates of Analysis (COA) are available upon request to confirm compliance with your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep containers sealed to prevent moisture absorption and contamination from other materials. Separate from incompatible substances.

Specification

Item	Specification
Appearance	Black to grayish-black granular powder
Main Component (Al₂O₃)	≥ 75%
Mohs Hardness	8 - 9
Particle Size (Mesh)	Available from 60 to 1200 mesh
Moisture Content	≤ 1.0%
Acid Solubility	≤ 5.0%
Bulk Density	Contact for details

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