Description

Calcium Silicide is an inorganic compound primarily used as a powerful deoxidizing and desulfurizing agent in metallurgy. Its ability to form stable silicates makes it a critical material for controlling the composition and improving the mechanical properties of various alloys. This product is essential for manufacturers in the steel, iron, and non-ferrous metals industries seeking to enhance product quality and process efficiency.

Application

• Steelmaking Deoxidizer: Used to remove oxygen from molten steel, improving its strength and reducing porosity.
• Cast Iron Inoculant: Modifies the structure of graphite in cast iron, enhancing its machinability and mechanical strength.
• Magnesium Production: Acts as a reducing agent in the Pidgeon process for the thermal production of magnesium metal.
• Pyrotechnics and Incendiary Devices: Utilized for its ability to produce intense heat and sparks upon ignition.
• Welding Rod Coatings: Incorporated into coatings for certain welding electrodes to stabilize the arc and improve weld quality.
• Alloying Additive: Added to certain alloys to introduce silicon and improve specific characteristics like hardness and corrosion resistance.

Basic Information

Product Name	Calcium Silicide
CAS No.	12775-68-7
Molecular Formula	CaSi₂ (common form)
Molecular Weight	96.25 g/mol (for CaSi₂)
Synonyms	Calcium disilicide; Silicocalcium; Calcium silicon alloy; CaSi₂; Calcium monosilicide (CaSi); EINECS 235-830-9

Quality Control

Our Calcium Silicide is produced and tested to meet stringent industrial specifications. Quality is assured through batch-wise analysis of key parameters including chemical composition, particle size distribution, and reactivity. A Certificate of Analysis (COA) detailing assay, impurity levels, and physical properties is provided with each shipment to guarantee consistency and performance for your application.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic and easily oxidized nature, this material must be stored in a cool, dry, and well-ventilated place under an inert atmosphere (e.g., argon or nitrogen) to prevent moisture absorption and oxidation. Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Gray to black lump or powder
Assay (as CaSi₂)	Min. 95%
Calcium (Ca) Content	30 - 33%
Silicon (Si) Content	60 - 65%
Iron (Fe)	Max. 2.0%
Aluminum (Al)	Max. 1.5%
Carbon (C)	Max. 0.5%
Particle Size (Customizable)	0-10mm, 1-50mm, or powder (-100 mesh)

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