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Methyl Ethyl Ketone (MEK)

  • CAS Number: 78-93-3
  • EINECS Number: 201-159-0
  • Molecular Formula: C4H8O
  • Molecular Weight: 72.11 g/mol
  • Appearance: Colorless, volatile liquid with a sweet, sharp odor
  • Density: 0.805 g/cm³ (20°C)
  • Melting Point: -86.3°C
  • Boiling Point: 79.6°C
  • Flash Point: -9°C (closed cup)
  • Solubility: Miscible with water, alcohol, ether, and most organic solvents
  • Water Solubility: 29% (20°C)
  • pH: Neutral
  • Packing: 20kg/drum, 160kg/steel drum, ISO tank
  • 20GP Container Loading: Approx. 13.2 metric tons (around 82 drums)
  • Preparation: Mainly produced by dehydrogenation of 2-butanol

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Methyl Ethyl Ketone (MEK)

Methyl Ethyl Ketone (MEK), also known as butanone, is a colorless, volatile liquid with a sweet, sharp odor. It is a versatile solvent used in various industrial applications.

Packing:

Typically available in 20kg/drum, 160kg/steel drum, and ISO tank.

Applications:

Methyl Ethyl Ketone (MEK) is a versatile solvent with various applications:

  • Solvent: Used as a solvent for paints, coatings, adhesives, and printing inks.
  • Chemical Intermediate: Used in the production of various chemical compounds.
  • Extraction Solvent: Used as an extraction solvent in the pharmaceutical and food industries.

Hazard Identification:

Methyl Ethyl Ketone (MEK) is a flammable and irritant chemical. The main hazards associated with its use include:

  • GHS Hazard Pictograms:
  • Signal Word: Warning
  • Hazard Statements:
    • H225: Highly flammable liquid and vapor.
    • H319: Causes serious eye irritation.
    • H336: May cause drowsiness or dizziness.

Precautionary Statements:

To handle Methyl Ethyl Ketone (MEK) safely, the following precautions are recommended:

  • Prevention:
    • P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
    • P233: Keep container tightly closed.
    • P240: Ground and bond container and receiving equipment.
    • P241: Use explosion-proof electrical/ventilating/lighting equipment.
    • P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
    • P271: Use only outdoors or in a well-ventilated area.
    • P280: Wear protective gloves/protective clothing/eye protection/face protection.
  • Response:
    • P303+P361+P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
    • P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
    • P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
    • P312: Call a POISON CENTER/doctor if you feel unwell.
    • P370+P378: In case of fire: Use appropriate media to extinguish.
  • Storage:
    • P403+P233: Store in a well-ventilated place. Keep container tightly closed.
    • P405: Store locked up.
  • Disposal:
    • P501: Dispose of contents/container in accordance with local/regional/national/international regulations.

REACH CERTIFICATE

Field Details
Substance Name Methyl Ethyl Ketone
EC/List Number 201-159-0
CAS Number 78-93-3
Registration Number (Specify Registration Number Here)
Registration Date (Specify Registration Date Here)
Tonnage Band >1000 tonnes/year
Registration Type Full Registration
EC/List Name Methyl Ethyl Ketone
Current Only Representative Various ORs / Joint Submission
Company UID (Not publicly available for joint submissions)

COA Test Report

Product Name Methyl Ethyl Ketone (MEK)
Grade Industrial Grade
Batch Number 2025051601
Molecular Formula C4H8O
Molecular Weight 72.10
Quantity 5580 kg
Supplier Production Department
Sample Type Organic
Date May 19, 2025
Standard Q/CDKLHX1362-2016A

Test Results

Item Standard Requirement Test Result
Content (%) ≥98.0% 99.9%
Appearance Colorless or Light Yellow Liquid Colorless Liquid
Relative Density (d20/4) 0.803 ~ 0.807 0.805
Acidity and Alkalinity Conforms Conforms
Hydrochloric Acid Test Conforms Conforms
Water Content Conforms Conforms
Non-volatile Matter (%) ≤0.02 0.004

Conclusion: Conforms to Q/CDKLHX1362-2016A requirements.

Approved by Zhang Xiaobin
Reviewed by Guan Xiujun
Maintained by Yi Qingqing