Dibromomethane

Dibromomethane (CH2Br2) is a heavy liquid primarily used as an intermediate in organic synthesis, particularly in the production of pharmaceuticals, agrochemicals, and dyestuffs. It serves as a critical solvent and a brominating agent. In specialized industrial settings, it is utilized as a gauge fluid due to its high density and as a component in fire extinguishing formulations.

For most chemical synthesis applications, a purity level of ≥99.0% is standard. Buyers should request a Certificate of Analysis (COA) to verify levels of impurities such as moisture (typically ≤0.05%) and acidity (typically ≤0.01%). The refractive index (1.540-1.544) and specific gravity (2.47-2.50) are key physical markers of quality.

As a hazardous chemical, it must be accompanied by a comprehensive Safety Data Sheet (SDS) compliant with GHS standards. Suppliers must adhere to ISO 9001 for quality management and ISO 14001 for environmental management. Ensure the product meets REACH registration requirements if exporting to the EU, and verify the CAS No. 74-95-3 for regulatory tracking.

Due to its high density and volatility, Dibromomethane should be packed in UN-approved galvanized iron drums (250kg/drum) or ISO tanks for bulk orders. The packaging must be hermetically sealed to prevent evaporation and stored in a cool, dry, and well-ventilated warehouse, away from direct sunlight and incompatible substances like strong oxidizers.

Dibromomethane is classified under UN Class 6.1 (Toxic Substances) or sometimes handled as a general hazardous liquid depending on concentration and local laws. You must work with a freight forwarder experienced in Dangerous Goods (DG) handling. Ensure the supplier provides a Dangerous Goods Declaration and that the vessel is equipped to handle Class 9 or Class 6.1 cargo.

Utilize secure payment terms such as Letter of Credit (L/C) or Escrow services provided by reputable platforms like Made-in-China.com. Before full payment, consider hiring a third-party inspection agency like SGS or BV to perform pre-shipment inspection (PSI) to verify quantity, packaging integrity, and chemical composition.

Chemical prices are highly sensitive to raw material costs (Bromine) and environmental regulation shifts in the manufacturing region. Negotiate based on volume tiers; for example, ordering a full 20ft FCL (20 metric tons) typically yields a 10-15% discount compared to LCL. Requesting a fixed-price contract for a 6-month period can help hedge against market volatility.

Be aware of Anti-dumping duties and Export Licenses required by the country of origin. Ensure the HS Code (2903.39) is correctly declared to avoid customs delays or fines. Buyers should confirm if their local port has the specific license to receive hazardous chemicals, as not all ports are equipped to process toxic substances.