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Methyl Ethyl Ketone

Methyl ethyl ketone (MEK) is a low boiling, fast evaporating solvent colorless, stable liquid, partially miscible with water. MEK has exceptionally good solvency for many synthetic and natural resins that are used in the formulation of printing inks, lacquers, and other types of coatings.

Chemical Name: Methyl Ethyl Ketone

CAS Number: 78-93-3

Features: High Solvency

Synonyms: 2-butanone, 3-butanone, Butan-2-one, Ethyl(Methyl) Ketone, Ethylmethyl Ketone, MEK, Methyl(Ethyl) Ketone, Methylethyl Ketone

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Identification & Functionality

Chemical Family
Chemical Name
CAS No.
78-93-3
EC No.
201-159-0

Features & Benefits

Base Chemicals Features

Applications & Uses

Markets
Applicable Processes

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Puritymin. 99.5%m/mGC
Water0.03%m/mASTM D1364
Acidity (as Acetic Acid)0.002%m/mASTM D1613
Density (at 20°C)0.805kg/lASTM D4052
Specific Gravity (at 20°C/20°C)0.806ASTM D4052
Specific Gravity (at 25°C/25°C)0.802ASTM D4052
Coefficient of Cubic Expansion (at 20°C)13.010^-4/°CCalculated
Refractive Index (at 20°C)1.379ASTM D1218
Colormax. 5Pt-CoASTM D1209
Boiling Point80.0°C
Relative Evaporation Rate (nBuAc=l)4.0ASTM D3539
Relative Evaporation Rate (Ether=1)3.3DIN 53170
Antoine Constant A 6.18444kPa. °C
Antoine Constant B1259.22kPa. °C
Antoine Constant C221.758kPa. °C
Temperature Limits for Antoine Equation-40 to +90°C
Vapor Pressure (at 20°C)9.5kPaCalculated
Vapor Pressure (at 50°C)36.0kPaCalculated
Saturated Vapor Concentration (at 20°C)280.0g/m³Calculated
Volatile Organic Compound (VOC)805.0g/lEU / EPA
Flash Point (Abel)-6.0°CIP 170
Auto Ignition Temperature515.0°CASTM E659
Lower Explosion Limit1.8%v/v
Upper Explosion Limit11.5%v/v
Electrical Conductivity (at 20°C)2x10^7pS/mASTM D4308
Dielectric Constant (at 20°C)18.5
Freezing Point-86.0°C
Surface Tension (at 20°C)25.0mN/m
Viscosity (at 20°C)0.42mPa.s
Hildebrand Solubility Parameter9.3(cal/cm³)1/2
Hydrogen Bonding Index10.5
Fractional Polarity0.51
Heat of Vaporization at Thail433.0kJ/kg
Heat of Combustion (Net, at 25°C)31500.0kJ/kg
Specific Heat (at 20°C)2.19kJ/kg/°C
Thermal Conductivity (at 20°C)0.15W/m/°C
Miscibility (at 20°C)12.0%m/m
Miscibility (at 20°C)25.0%m/m
Boiling Point (Azeotrope with Water)73.4°C
Solvent Content (Azeotrope with Water)88.7%m/m
Molecular Weight72.0g/mol

Regulatory & Compliance

Certifications & Compliance