Import Calcium Carbide — Buy in Bulk from Supplier in China

Calcium carbide from Ngo Chemical Group (Tianjin) Ltd. is an industrial chemical with the molecular formula CaC2 and CAS number 75-20-7, classified under UN 1402 and HS code 28491000. This black or grey solid produces acetylene gas at a yield of 295 L/kg or higher at 20°C and 101.3 kPa, with impurity levels limited to 0.08% PH3 and 0.1% H2S by volume. The supplier offers lump sizes ranging from 4-7 mm up to 80-120 mm, packed in 50 kg or 100 kg iron drums for safe transport.

The product meets typical industrial standards for calcium carbide, with a molecular weight of 64.10 g/mol and a purity suitable for acetylene generation. Lump size affects gas release rates, with finer grades (4-7 mm) often used in controlled applications, while larger lumps (25-80 mm) are preferred for bulk gas production. Standard industry practice requires low moisture content to prevent premature acetylene release, and the material must be kept dry to avoid degradation.

This calcium carbide is primarily used for acetylene gas production in chemical synthesis, welding, and metal cutting industries. Buyers typically include manufacturers of PVC, steel producers, and industrial gas suppliers. Trade terms for this supplier include bulk packaging in iron drums, with transportation requiring strict separation from acids, oxidizers, and moisture. Confirm MOQ, lead times, and incoterms directly with Ngo Chemical Group (Tianjin) Ltd. before ordering.

Ngo Chemical Group (Tianjin) Ltd. operates from Room 2205, Guohua Building on Dagu South Road in Hexi District, Tianjin, China. The company is classified as an imported-tier supplier with a harbor trust tier, indicating a baseline level of verification for international trade. Its address places it in a commercial hub within Tianjin, a major port city for chemical exports in northern China.

The supplier’s profile does not provide details on response rates, average response hours, or additional verification signals beyond the harbor tier. The listing focuses on the technical specifications of calcium carbide, with no claims about production capacity, certifications, or client history. Buyers should verify operational details, trade references, and compliance documentation directly with the supplier before proceeding.