Description
Methyl Ethyl Ketone 99.5% (MEK)
Methyl Ethyl Ketone 99.5% (MEK) (CAS 78-93-3, molecular formula C4H8O) is a workhorse solvent across coatings, cleaning and process manufacture, valued for its predictable evaporation behaviour and consistent purity from batch to batch. China Chemicals supplies it at 99.5% min in pack sizes from 1 L through to 200 L Drum, so laboratory trial quantities and full production volumes can be sourced from the same specification.
It is also traded as MEK, Butanone, 2-Butanone, Ethyl Methyl Ketone. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.
Typical applications
- High-solids coating and vinyl adhesive formulation
- PVC pipe cement and plastic welding
- Dewaxing of lubricating oils
- Magnetic tape and film coating manufacture
- Printing ink solvent requiring fast release
Technical specification
| Chemical name | Methyl Ethyl Ketone 99.5% (MEK) |
|---|---|
| Synonyms | MEK, Butanone, 2-Butanone, Ethyl Methyl Ketone |
| CAS number | 78-93-3 |
| Molecular formula | C4H8O |
| Appearance | Clear colourless liquid |
| Purity | 99.5% min |
| Water | 0.1% max |
| Acidity as acetic acid | 0.005% max |
| Evaporation residue | 0.002% max |
| Density at 20°C | 0.803 – 0.806 g/cm³ |
| Boiling point | 79.6°C |
Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.
Packaging and supply
Available in 1 L, 5 L, 25 L, 200 L Drum. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.
Handling and safety
Transport classification: UN1193 · Flammable Liquid, Class 3. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.
Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.
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