Methylene chloride

Buyers must prioritize purity levels, typically requiring ≥99.9% for pharmaceutical or high-end chemical synthesis. Key parameters include moisture content (max 100ppm), acidity (max 10ppm as HCl), and non-volatile residue. Ensure the supplier provides a Batch-specific Certificate of Analysis (COA) to verify these metrics before shipment.

Methylene Chloride is a hazardous substance. Suppliers must provide a Safety Data Sheet (SDS/MSDS) compliant with the Globally Harmonized System (GHS). For export to the EU, REACH registration is essential. For US markets, compliance with TSCA (Toxic Substances Control Act) and EPA regulations regarding volatile organic compounds (VOCs) is mandatory.

DCM is highly volatile. It should be packed in galvanized iron drums (250kg/270kg) or ISO tanks to prevent leakage and reaction with moisture. Storage areas must be cool, dry, and well-ventilated, away from direct sunlight and incompatible materials like strong oxidizers or chemically active metals (e.g., aluminum, magnesium) to avoid explosive reactions.

It is widely used as a solvent in paint stripping and degreasing, a process solvent in the pharmaceutical industry for tablet coating, and a blowing agent for polyurethane foams. It also serves as an extraction solvent for decaffeinating coffee and tea (food-grade requirements apply) and in the production of polycarbonate resins.

Methylene Chloride is classified as Class 6.1 Toxic Substances (UN No. 1593). You must use a freight forwarder certified for Dangerous Goods (DG). Ensure the vessel is equipped for DG transport and that all packaging carries the correct hazard labels. Shipping via ISO Tank is often more cost-effective for high-volume buyers but requires specialized receiving infrastructure.

Utilize Made-in-China.com's Secured Trading services to protect your payment. Always request a pre-shipment inspection (PSI) by a third party like SGS or Intertek to verify the chemical purity and drum sealing. Avoid suppliers who cannot provide a Business License or Hazardous Chemical Production/Trade License.

DCM prices are highly sensitive to raw material costs (Liquid Chlorine and Methanol) and environmental protection policies in the manufacturing region. Do not simply choose the lowest price; unusually low quotes often indicate recycled or sub-standard purity. Negotiate based on Incoterms 2020 (FOB or CIF) and clarify who bears the DG surcharge and port congestion fees.

Verify the HS Code (typically 29031200) with your local customs to determine applicable tariffs and anti-dumping duties. Ensure the supplier provides a Certificate of Origin to benefit from any Free Trade Agreements (FTAs). In many countries, an Import License for Toxic Chemicals is required before the cargo arrives at the port.