Welcome to ZY Chemical, your premier global partner for high-purity industrial grade soild calcium carbide lumps in the 15-25mm size fraction. Processed under strict quality management standards, our 15-25mm grade provides an optimized surface-area ratio for steady hydrolysis, making it the ideal feedstock for industrial acetylene generation plants, steel desulfurization, and chemical processing.
Industrial procurement managers evaluating their chemical budget often compare the soild calcium carbide price per kg against actual gas yield efficiency. At ZY Chemical, we deliver premium material that guarantees maximum cost-effectiveness for your operations. If your plant is ready to streamline raw material sourcing, you can easily request a quote and prepare to secure your calcium carbide stone buy online directly through our integrated B2B supply portal.
Our 15-25mm soild calcium carbide lumps are smelted in high-capacity electric furnace units using high-grade lime and metallurgical coke. Precision mechanical screening keeps fine dust and oversize chunks well below international standard tolerances. Furthermore, our sophisticated automated screening equipment undergoes routine calibration to prevent particle segregation and deliver consistent grain uniformity, ensuring predictable reactivity across every production batch.
| Technical Parameter | Guaranteed Specification Standard |
|---|---|
| Chemical Formula / CAS No. | CaC2 / 75-20-7 |
| Granulation Fraction | 15 mm – 25 mm (≥ 90% in fraction) |
| Min. Acetylene Gas Yield | ≥ 295 L/kg (20°C, 101.3 kPa) |
| Phosphine (PH3) Content | ≤ 0.08% (v/v) |
| Hydrogen Sulfide (H2S) Content | ≤ 0.15% (v/v) |
| Packaging Specification | 50kg / 100kg UN-Approved Nitrogen-Sealed Steel Drums |
Our 15-25mm soild calcium carbide lumps serve as essential precursors for dissolved acetylene (DA gas) production, secondary ladle metallurgy desulfurization, and organic synthesis. In steelmaking, the optimal sizing allows rapid dissolution into liquid steel, maximizing desulfurization kinetic efficiency. As a Dangerous Good (Class 4.3, UN 1402, Packing Group I), all shipments are packed in heavy-duty 50kg or 100kg steel drums sealed under dry nitrogen atmosphere to eliminate ambient moisture exposure during ocean transit. Every drum undergoes rigorous drop and pressure testing to guarantee zero atmospheric leakage during long-distance maritime shipping.
To guarantee that every batch meets global industrial expectations, ZY Chemical implements an end-to-end quality assurance program. From raw material inspection in Inner Mongolia to final loading at the port, our chemical engineers test every lot using certified analytical equipment. Each shipment includes a comprehensive Certificate of Analysis (COA) detailing exact gas yield values, impurity levels, and sieve analysis. Additionally, our container loading teams utilize heavy-duty palletization and moisture-proof wrapping, ensuring that drums remain perfectly intact and upright throughout ocean transport.
We supply industrial buyers across over 40 countries with guaranteed chemical stability, transparent calcium carbide price per kg structures, and flexible commercial terms (L/C, T/T). Contact our sales engineering team today to review technical COAs, receive custom freight quotes, or complete your calcium carbide stone buy online inquiry for your facility.
