2-Butanone Cas 78-93-3

CAS Number

78-93-3

Molecular Formula

C₄H₈O

Also known as:

2-Butanone; Methyl ethyl ketone; MEK; Butan-2-one; Ethyl methyl ketone.

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Product Description

Product introduction

2-Butanone (common name Methyl Ethyl Ketone, abbreviated MEK; CAS 78-93-3) is a clear, colorless, highly volatile ketone solvent widely used in industrial and formulation chemistry. It delivers strong solvency for many resins, oils and waxes while exhibiting a moderate evaporation rate that balances rapid drying with good film leveling. Commercial offerings include stabilized and unstabilized grades across laboratory, technical and bulk volumes. Request lot-specific Certificate of Analysis (CoA) and Safety Data Sheet (SDS) prior to qualification.

Applications & Descriptions

  • Coatings & Paints
    Used as a fast-evaporating solvent and co-solvent in alkyds, acrylics, nitrocellulose and other industrial coating systems to improve solvency, flow and film formation.

  • Adhesives & Sealants
    Employed in solvent-borne adhesive formulations and cleaning steps where strong solvency for resins and controlled evaporation are required.

  • Cleaning & Degreasing
    Used in precision cleaning, parts-washing and degreasing operations to remove oils, greases and polymer residues (where permitted).

  • Extraction & Process Solvent
    Applied in extraction, stripping and certain process steps in fine-chemical and formulation manufacture due to favorable solvent power and volatility.

  • Polymerisation / Resin Processing
    Used as a processing solvent, diluent or cleaning solvent in polymer manufacture and for formulation of resin solutions and varnishes.

  • Laboratory Reagent & Analytical Use
    Supplied for method development, GC standards, solvent extractions and research applications requiring a medium-polarity ketone solvent.

Technical Parameters

Parameter Value
Appearance Clear, colorless liquid
Melting point ≈ −86 °C
Boiling point ≈ 79–80 °C
Density (20 °C) ≈ 0.805–0.810 g·cm⁻³

Applications

Coating Cosolvents

Quick Information

Molecular Weight 72.11 g/mol

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