Methyl ethyl ketone 99.9%

For industrial and laboratory applications, 99.9% purity is the benchmark. Buyers must verify the Water Content (Moisture), which should ideally be ≤ 0.05%, and the Acidity (as Acetic Acid), which should be ≤ 0.003%. The Non-Volatile Matter should not exceed 2mg/100ml to ensure no residue is left after evaporation. Always request a Certificate of Analysis (COA) for every batch to confirm these parameters.

MEK is a highly versatile solvent. It is primarily used in surface coatings (paints and lacquers), adhesives, and printing inks due to its fast evaporation rate. In the electronics industry, 99.9% purity is essential for cleaning precision components. It also serves as a critical chemical intermediate in the production of antioxidants and perfumes, where impurities could compromise the final chemical reaction.

As a hazardous chemical, MEK must comply with the Globally Harmonized System (GHS) for classification and labeling. Suppliers must provide a comprehensive Safety Data Sheet (SDS). For international trade, ensure the product meets ISO 9001 for quality management. If the MEK is used in food-contact packaging inks, it must align with FDA or REACH (EU) regulations regarding chemical migration and safety.

MEK is a Class 3 Flammable Liquid. Buyers must ensure the supplier uses UN-certified packaging, typically galvanized iron drums (160kg-165kg) or ISO tanks for bulk shipments. Storage facilities must be cool, dry, and well-ventilated, equipped with explosion-proof lighting and grounding systems to prevent static electricity buildup, which is a major fire risk for high-purity solvents.

MEK is classified under UN Number 1193, Hazard Class 3. Shipping requires a Dangerous Goods (DG) Declaration. You must work with freight forwarders experienced in handling hazardous materials. Ensure the supplier provides a Container Load Plan and that the vessel allows for flammable liquids. For shipping to regions like the US or Europe, ensure the IMDG (International Maritime Dangerous Goods) Code is strictly followed.

To ensure transaction security, use Trade Assurance services provided by platforms like Made-in-China.com. This protects your payment until the goods are shipped. Additionally, hire a third-party inspection agency (such as SGS or BV) to perform a Pre-Shipment Inspection (PSI). The inspector should take samples directly from the drums to verify the 99.9% purity and check for drum integrity and proper labeling.

MEK prices are highly sensitive to crude oil market fluctuations and raw material (n-butene) costs. Negotiate based on volume-based pricing tiers; orders exceeding 20 tons (one full container load) usually qualify for significant discounts. Discuss Incoterms clearly—FOB (Free On Board) is often preferred for buyers who have their own DG-certified logistics partners, while CIF (Cost, Insurance, and Freight) may be easier for first-time buyers.

Yes, MEK is often monitored as a Table II Precursor Chemical under the UN Convention against Illicit Traffic in Narcotic Drugs because it can be used in the processing of illegal substances. Buyers may need to provide an End-User Certificate (EUC) to prove the chemical is for legitimate industrial use. Always check your local customs and import regulations to see if an import permit for precursor chemicals is required before placing an order.