Precise 15-25mm Granularity: Uniform size distribution prevents generator clogging and ensures stable, predictable reaction rates.
High Gas Yield Output: Yields ≥295 L/kg of pure acetylene gas, lowering raw material requirements and operational costs.
Easy B2B Online Procurement: Option to evaluate specifications, request custom quotes, and arrange bulk calcium carbide stone buy online with verified export documentation.
Export-Grade UN Packaging: Packed in 50kg or 100kg hermetically sealed steel drums with nitrogen purging to prevent moisture contamination during transit.
Global Export Compliance: Complete with MSDS, COA, and UN 1402 Class 4.3 dangerous goods certifications for safe global delivery.
As a trusted global chemical manufacturer and supplier, we specialize in delivering high-purity metallurgical and chemical-grade calcium carbide (CaC2). Our 15-25mm size fraction is meticulously screened to meet the rigorous demands of automated acetylene gas plants, metal cutting operations, and steel mill desulfurization systems.
To streamline global commercial procurement, our B2B digital portal allows international buyers seeking calcium carbide stone buy online options to inspect detailed batch analysis, review international dangerous goods compliance, and request instant bulk quotes directly from the factory.
Our 15-25mm calcium carbide stones undergo advanced electric arc furnace processing to ensure consistent lump density, high gas evolution efficiency, and minimal residue.
| Technical Parameter | Standard Specification | B2B Commercial Value |
| Chemical Formula | CaC2 (Calcium Carbide) | Superior chemical reactivity with water |
| Granularity Size | 15-25mm Precise Screening | Prevents feeder clogging in automatic generators |
| Acetylene Gas Yield | ≥295 L/kg @20℃, 101.3kPa | Maximizes gas volume output per metric ton |
| Phosphine (PH3) Impurity | ≤0.05% (v/v) | Lowers gas purification operational costs |
| Hydrogen Sulfide (H2S) | ≤0.10%\(v/v) | Protects gas processing equipment from corrosion |
| Packaging Compliance | UN 1402 Dangerous Goods Approved | Nitrogen-purged steel drums (50kg / 100kg) |
The 15-25mm grain size is the industry gold standard for continuous-feed acetylene gas generators. The uniform lump dimensions ensure smooth movement through hopper valves without bridge formation, delivering a steady reaction rate and consistent pressure during high-volume gas production.
In secondary metallurgy, 15-25mm carbide stones act as powerful reducing agents. When injected or added into molten iron ladles, the material rapidly reacts with sulfur impurities to form calcium sulfide ($\text{CaS}$), enabling steelmakers to achieve ultra-low sulfur grades efficiently.
Beyond acetylene fuel, this specific particle size serves as a critical raw material for manufacturing vinyl chloride monomer (VCM), synthetic rubbers, calcium cyanamide fertilizers, and various organic solvents.
Seamless B2B Digital Procurement: Chemical importers looking for calcium carbide stone buy online channels can now fast-track inquiries, access live technical documentation, and schedule factory-direct bulk deliveries with full transparency.
Optimized Particle Screening: We utilize multi-stage mechanical sifting to ensure strict adherence to the 15-25mm range, dramatically reducing fine powders and dust that cause chemical waste or equipment hazards.
High Chemical Yield & Purity: Delivering a guaranteed gas output (≥295L/kg), our carbide reduces the overall tonnage required per batch of acetylene generated, lowering operating expenditures for your facility.
Heavy-Duty Export Packaging: Packed under dry nitrogen purging in 50kg or 100kg hermetically sealed steel drums engineered to resist moisture ingress and oxidation during long-distance maritime shipping.
Shipping hazardous chemicals requires strict international regulatory compliance. When you arrange calcium carbide stone buy online shipments through our sales network, every order includes full logistics handling under UN 1402 Class 4.3 standards:
Packaging Options: Heavy-duty steel drums (50kg/ 100kg) on reinforced pallets, shrink-wrapped for marine freight.
Export Documentation: Complete Safety Data Sheet (SDS), Certificate of Analysis (COA) per lot, ISO 9001 quality certificates, and UN hazardous packaging validation.
Global Shipping Capacity: Reliable monthly output exceeding 6,000 Metric Tons with flexible FOB, CFR, and CIF freight terms to major worldwide destination ports.
Whether you manage an industrial gas bottling plant or an integrated steel factory, our premium 15-25mm carbide stones deliver the ideal combination of purity, reactivity, and supply reliability.
Contact our commercial technical team today to request customized batch specifications, review shipping schedules, or submit your quote for high-grade 15-25mm calcium carbide.
