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Calcium Carbide
1.High purity products – calcium carbide content ≥80%, suitable for industrial applications.
2.Stable supply capacity – stable supply of large quantities of products.
3.Safety standards – in compliance with dangerous goods transportation and storage regulations.
4.Good packaging – usually packaged in barrels or iron drums, sealed to prevent moisture.
5.Technical support – providing customized solutions.
6.Export experience – familiar with global dangerous goods transportation.
Calcium carbide is an off-white solid with the molecular formula CaC 2 and a molecular weight of 64.10. It was first discovered by Friedrich Wöhler in 1862 to react with water to produce acetylene and calcium hydroxide. It is commercially known as carbide and is commonly used to produce acetylene gas.
High-purity Calcium Carbide lumps and fine granules with guaranteed Gas Yield (≥295 L/kg). Produced at our Inner Mongolia manufacturing base, packed in 50kg/100kg UN-certified hermetic steel drums with 99.9% pure dry nitrogen purging for safe global ocean freight.
Serves as the primary raw material for industrial dissolved acetylene gas production used in metal cutting, welding, and flame heating applications.
Acts as a powerful desulfurizing agent and deoxidizer in ladle refining furnaces (LMF), reacting rapidly with molten steel to bind sulfur impurities into slag.
Used in organic chemical manufacturing pathways to derive vinyl chloride monomer (PVC via acetylene route), calcium cyanamide (lime nitrogen), and plant ripening agents.
Calcium carbide sizes are typically categorized by application and market demand. Common specifications are as follows:
1.Lump calcium carbide
Sizes: 50-80mm calcium carbide, 80-120mm calcium carbide, 120-200mm calcium carbide , etc.
Features: Large lump calcium carbide reacts more slowly and is suitable for large-scale industrial use. Moisture-proof transportation and storage are essential.
2.Granular calcium carbide
Sizes: 2-5mm calcium carbide , 5-15mm calcium carbide , 15-25mm calcium carbide , etc.
Features: Small particles, fast reaction speed, commonly used in laboratories or small acetylene generators.
3.Powdered calcium carbide
Size: Less than 1mm.
Features: Violent reaction, requiring caution. Generally used in specialty chemical synthesis.
Calcium carbide is mainly used to produce acetylene gas for industrial purposes, including lime nitrogen fertilizers and acetylene burners. It has historical significance in the synthesis of organic compounds and is used as a desulfurization agent in steelmaking.
Great potential for cost savings
Minimum sulfur content in slag, high sulfur content
Recovery of chromium, manganese, silicon, and iron from slag
Gas deoxidation products have improved purity
Contact us to provide you with a stable supply of calcium carbide！
Strictly testing every batch according to GB/T 10666 standards. Delivering consistent gas generation rate of 295 L/kg - 305 L/kg for maximum cylinder refill output.
Located in Chahar Right Back Banner, Inner Mongolia—China's premium carbide raw material hub. 215-acre facility ensuring stable continuous supply without seasonal lead-time delays.
All drums undergo vacuum air extraction and 99.9% nitrogen gas flushing to prevent premature oxidation, ambient moisture caking, or pressure accumulation during transport.
Multi-layer vibrating screen processing ensures high particle uniformity with fines content (< lower bound) under 5%, preventing line clogging in generators.
Select the correct size mesh optimized for your specific industrial reaction equipment:
| Particle Size (mm) | Target Application | Key Advantage |
| 80–120 mm / 50–80 mm (Large Lumps) | Large-scale Continuous Acetylene Generators & EAF Steelmaking | Slow dissolution rate, high structural strength, zero gas pressure surge |
| 25–50 mm / 20–40 mm (Medium Workhorse) | Commercial Acetylene Refilling Stations & Metal Welding | Golden equilibrium between reaction speed and steady acetylene yield |
| 7–15 mm / 4–7 mm / 2–4 mm (Small Granules) | Portable Acetylene Generators & Chemical Synthesis | Rapid gas activation with predictable dissolution kinetics |
| 0.5–3 mm / 0.3–1 mm (Fine Powder) | Ladle Furnace (LF) Steel Desulfurization & Reagent Feed | High specific surface area for fast metallurgical reaction, smooth pneumatic pumping |
Calcium carbide is classified under UN 1402 (Class 4.3 - Dangerous when wet). To protect your shipment across international waters, we adhere to rigorous export standards:
New Heavy-Gauge Iron Drums: Available in 50kg net and 100kg net capacity with reinforced locking rings.
Dual-Layer Moisture Defense: Inner high-density sealed polyethylene liner combined with high-pressure nitrogen gas purge.
Custom Stenciling & Color Coding: Support private drum painting, custom shipping marks, and hazard warning labels complying with IMDG regulations.
Q: What is the standard Gas Yield for your calcium carbide?
A: Our standard export grade guarantees a minimum gas yield of 295 L/kg at 20°C and 101.3 kPa. Premium grades can reach up to 305 L/kg depending on raw material selection and lump size.
Q: How do you prevent dust explosion or caking during transit?
A: Every steel drum undergoes a mandatory nitrogen flushing process (99.9% purity) before sealing. This eliminates oxygen and atmospheric moisture inside the container, preventing oxidation, degradation, and dangerous gas buildup.
Q: What is the minimum order quantity (MOQ) and lead time?
A: Our standard MOQ is one 20ft full container load (FCL), which holds 22.5 Metric Tons (450 x 50kg drums or 225 x 100kg drums). Lead time is typically 10-15 days from factory order to port loading.
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