Methyl ethyl ketone mek

Buyers must prioritize Purity levels, which should typically be ≥99.5% for industrial grades. Key parameters include Water Content (max 0.1%), Acidity (as acetic acid, max 0.003%), and Non-volatile matter. Ensure the product has a clear, colorless appearance and meets the ASTM D740 standard for Urethane Grade or Technical Grade requirements.

As a hazardous chemical, MEK must be accompanied by a valid Material Safety Data Sheet (MSDS/SDS) compliant with GHS (Globally Harmonized System). For the EU market, REACH registration is mandatory. For the US, ensure compliance with TSCA (Toxic Substances Control Act). Additionally, verify the supplier holds ISO 9001 for quality management and ISO 14001 for environmental standards.

MEK is a highly efficient solvent used extensively in surface coatings (nitrocellulose, acrylic, and vinyl), printing inks, and adhesives due to its fast evaporation rate and excellent solvency. It is also a critical precursor for MEKP (Methyl Ethyl Ketone Peroxide), used as a catalyst in polyester resin polymerization. Its ability to dissolve resins at high solids concentrations makes it economically feasible for reducing VOC emissions in specific formulations.

MEK is highly flammable (Class 3 Hazardous Good) with a low flash point (approx. -9°C). Suppliers must provide UN-certified packaging, such as galvanized steel drums (160kg-165kg) or ISO tanks. Ensure the supplier provides guidance on cool, well-ventilated storage away from oxidizing agents and direct sunlight to prevent peroxide formation and maintain a shelf life of 12-24 months.

MEK is classified under UN Number 1193, Hazard Class 3. Shipping requires Dangerous Goods (DG) declarations and specialized carriers. When sourcing from Made-in-China.com, confirm the supplier has a Dangerous Goods Export License. For international shipping, FOB or CIF terms are common, but buyers must ensure the destination port is equipped to handle hazardous liquid chemicals.

Utilize Trade Assurance services to protect payments until delivery is confirmed. It is highly recommended to appoint a third-party inspection agency (like SGS or Intertek) to perform pre-shipment sampling and testing at the loading port. This ensures the purity and moisture content align with the agreed-upon COA (Certificate of Analysis) before the balance payment is released.

MEK pricing is highly sensitive to raw material costs (n-butene/sec-butyl alcohol) and crude oil fluctuations. Negotiate based on volume-based pricing tiers; orders exceeding 15-20 metric tons (one full container) typically yield a 5-10% discount. Discuss long-term supply contracts to hedge against price volatility and ensure priority allocation during periods of high market demand.

In many jurisdictions, MEK is monitored as a Table II Precursor under the UN Convention against Illicit Traffic in Narcotic Drugs. Buyers must provide an End-User Certificate (EUC) and ensure they have the necessary import permits required by their local government to avoid customs seizures or legal penalties.