Description

Calcium Carbide CAS NO 75-20-7 is an inorganic compound primarily used as a fundamental industrial reagent for acetylene generation. Its high reactivity with water makes it a critical raw material for oxy-acetylene welding and cutting, metal fabrication, and chemical synthesis. This product is essential for industries including steel manufacturing, chemical production, and mining, where a reliable source of acetylene gas is required.

Application

• Acetylene Production: The primary industrial use, reacting with water to produce acetylene gas for welding, cutting, and brazing applications.
• Steel Manufacturing: Used as a desulfurizing and deoxidizing agent in the production of iron and steel to improve quality and control sulfur content.
• Chemical Synthesis: Serves as a key precursor in the production of various organic chemicals, including vinyl chloride, acetylene black, and certain plastics.
• Calcium Cyanamide Production: Reacted with nitrogen at high temperatures to produce calcium cyanamide, a fertilizer and chemical intermediate.
• Mining & Lamp Industry: Historically and in some regions, used in carbide lamps for illumination in mining and caving.
• Ripening Agent: Used in some agricultural practices for the controlled ripening of fruits.

Basic Information

Product Name	Calcium Carbide
CAS No.	75-20-7
Molecular Formula	CaC₂
Molecular Weight	64.10 g/mol
Synonyms	Calcium Acetylide; Carbide; Calcium Dicarbide; Acetylenogen; Ethynyl Calcium; Calcium Ethynide; CaC2
EINECS	200-848-3

Quality Control

Our Calcium Carbide is manufactured and tested to meet stringent industrial specifications. Quality is assured through rigorous in-process controls and final batch analysis, which includes assessment of gas yield (acetylene generation) and purity. Certificates of Analysis (COA) detailing specific batch results are available upon request to ensure traceability and compliance with your procurement standards.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, it must be stored in a cool, dry, and well-ventilated area, away from any source of water or humidity. Containers must be kept sealed when not in use to prevent reaction with atmospheric moisture. Store separately from acids and oxidizing agents.

Specification

Item	Specification
Appearance	Greyish-black lumps or crystalline solid
Assay (CaC₂)	Min. 80%
Gas Yield (l/kg)	Contact for details
Phosphine (PH₃) Content	Max. 0.06% (v/v)
Arsine (AsH₃) Content	Max. 0.001% (v/v)
Sulfur (as H₂S)	Max. 0.1% (v/v)
Particle Size	Customizable (e.g., 1-4 mm, 4-7 mm, 7-15 mm, 15-25 mm, 25-50 mm, 50-80 mm)

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