Our premium-grade Chinese calcium carbide is manufactured to meet rigorous international industrial standards. Designed for high gas yield, consistency, and stability, it serves as an essential raw material for acetylene production, steel desulfurization, and organic synthesis. Available in multiple particle sizes with durable, moisture-proof steel drum packaging suited for long-distance maritime export.
As a trusted global manufacturer and exporter, we provide high-grade 25-50mm Chinese calcium carbide designed to meet the rigorous demands of acetylene gas plants, chemical processing facilities, and metallurgical foundries worldwide. Produced using premium raw anthracite coal and high-purity limestone in modern submerged arc furnaces, our 25-50mm sized Calcium Carbide ($CaC_2$) delivers high gas yield, low impurity levels, and excellent consistency.
The 25-50mm grain size is one of the most widely requested specifications in the industrial market. It offers an optimal balance between surface area reaction speed and feed stability in automated acetylene generators, reducing maintenance overhead and maximizing operational safety.
| Parameter | Specification / Value |
| Product Name | Industrial Grade Calcium Carbide (CaC2) |
| Particle Size | 25mm – 50mm (Custom mesh size available upon request) |
| Gas Yield | ≥295 L/kg – 305 L/kg at 20℃ and 101.3 kPa |
| PH3 Content (v/v) | ≤0.08% |
| H2S Content (v/v) | ≤0.10% |
| State & Appearance | Dark gray / brown solid lumps |
| Packaging | 50kg or 100kg sealed steel drums flushed with Nitrogen (N2) |
| HS Code | 28491000 |
| UN Number | UN 1402 (Class 4.3 Dangerous Goods) |
Our Chinese calcium carbide consistently yields over 295 liters of acetylene gas per kilogram. High reaction stability allows gas production plants to optimize raw material consumption while lowering energy overhead per cubic meter of gas produced.
Safety and purity are non-negotiable in chemical production. By strictly controlling the levels of phosphine (PH3) and hydrogen sulfide (H2\S), our chinese calcium carbide minimizes risk in downstream acetylene purification equipment and ensures a cleaner gas output for high-precision welding and cutting operations.
The 25-50mm sizing prevents generator clogging, arching, and erratic gas release. The uniform density ensures predictable reaction kinetics, making it the ideal choice for continuous-feed gas generators and automated desulfurization systems in steelworks.
Industrial Acetylene Gas Production: Serves as the primary feed material for acetylene gas generating stations used in cutting, welding, and flame treatment.
Steelmaking & Metallurgy: Used as a powerful desulfurizing agent in ladles and molten iron processing to improve the quality and ductility of steel products.
Chemical Synthesis: Provides the hydrocarbon base for producing PVC resin, calcium cyanamide (lime nitrogen), synthetic rubber, and fine organic chemicals.
Deoxidizer in Foundries: Utilized in slag treatment process within electric arc furnaces.
Because calcium carbide reacts violently with water to liberate flammable acetylene gas, export logistics require strict adherence to international maritime safety codes (IMDG Code).
Hermetically Sealed Packaging: Packed in brand-new, heavy-duty 50kg or 100kg iron drums.
Nitrogen Purging: Every drum is purged with inert Nitrogen gas prior to sealing to exclude atmospheric moisture and prevent premature reaction during transit.
Container Loading: Secured with heavy-duty lashing in 20ft dry containers (FCL) to endure long ocean voyages under harsh maritime conditions.
Certifications: Supplied with complete MSDS, COA, UN Approval Certificate, and Pre-shipment Inspection (SGS / BV) upon request.
Direct Factory Supply: Eliminate middleman costs with factory-direct pricing and flexible payment terms (T/T, L/C at sight).
Consistent Quality Control: Rigorous batch testing from raw material selection through final drum sealing ensures zero compromise on gas yield.
Global Shipping Experience: Full compliance with dangerous goods export procedures, ensuring smooth customs clearance at major international destination ports.
For bulk inquiries, updated FOB/CIF price quotes, or specific sizing requests for chinese calcium carbide, contact our international sales division today.
