Description

Calcium Silicide is an inorganic compound primarily used as a powerful deoxidizing and desulfurizing agent in metallurgy. Its high reactivity with oxygen and sulfur makes it a critical additive for producing clean, high-performance steels and cast irons. This material is essential for manufacturers in the steel, iron, and specialty alloys industries seeking to control microstructure and improve mechanical properties.

Application

• Steelmaking Deoxidizer: Used to remove dissolved oxygen from molten steel, preventing porosity and improving strength and ductility.
• Desulfurizing Agent: Reacts with sulfur in iron and steel melts to form stable sulfides, enhancing hot workability and toughness.
• Inoculant in Cast Iron: Promotes the formation of graphite in cast iron, improving machinability and thermal conductivity.
• Alloying Additive: Serves as a source of silicon and calcium for the production of specialty ferrous and non-ferrous alloys.
• Pyrotechnics and Incendiary Devices: Used in certain mixtures due to its ability to produce intense heat upon ignition.
• Thermal Reduction Processes: Acts as a reducing agent in the production of certain metals from their oxides.

Basic Information

Product Name	Calcium Silicide
CAS No.	12013-55-7
Molecular Formula	CaSi2 (common), other stoichiometries exist (e.g., CaSi, Ca2Si)
Molecular Weight	96.25 g/mol (for CaSi2)
Synonyms	Calcium Disilicide; Silicon Calcium; Calcium Silicon Alloy; Calciosilite; Silicocalcium; Ferrocalcium; CaSi; CaSi2; Calcium Silicide Powder; Calcium Silicon
EINECS	234-588-7

Quality Control

Our Calcium Silicide is manufactured under strict process controls to ensure batch-to-batch consistency and meets typical industrial-grade specifications. Quality is verified through analysis of key parameters including chemical composition, particle size distribution, and reactivity. A Certificate of Analysis (COA) detailing lot-specific results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from moisture and incompatible materials such as strong acids and strong oxidizing agents. Due to its reactive nature, keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Gray to black lump or powder
Assay (as CaSi2)	Min. 98.0%
Calcium (Ca) Content	30 - 33%
Silicon (Si) Content	65 - 70%
Iron (Fe)	Max. 1.0%
Aluminum (Al)	Max. 0.5%
Carbon (C)	Max. 0.2%
Particle Size (Custom)	Lump, 0-10mm, 10-50mm, or powder grades available

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