Methyl ethyl ketone: Difference between revisions
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== Description == | == Description == | ||
A colorless liquid [ | A colorless liquid | ||
[[solvent|solvent]] with an acetone-like odor. Methyl ethyl ketone, or MEK, is used as a solvent for | |||
[[cellulose%20nitrate|cellulose nitrate]] lacquers, | |||
[[vinyl%20resin|vinyl]] films, | |||
[[acrylic%20resin|acrylic]] coatings, | |||
[[ink|inks]], and | |||
[[alkyd%20resin|alkyd]] ( | |||
[[Glyptal|Glyptal]]) resins. It is also used as a component in | |||
[[paint%20remover|paint removers]] and dry cleaning fluids. MEK does not dissolve | |||
[[cellulose%20acetate|cellulose acetate]] or most | |||
[[wax|waxes]]. | |||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
2-butanone; MEK; ethyl methyl ketone; ethylmethyl ketone; 2-oxobutane; methyl acetone; methylethyl ketone | 2-butanone; MEK; ethyl methyl ketone; ethylmethyl ketone; 2-oxobutane; methyl acetone; methylethyl ketone | ||
[[[SliderGallery rightalign|methyl ethyl ketone.jpg~Chemical structure]]] | |||
==Risks == | |||
[ | * Flammable. Flash point = -9C Dangerous fire risk. Explosive in limits air 2-10%. | ||
* Toxic by inhalation. | |||
* Skin contact causes dermatitis. | |||
* Ingestion causes vomiting and abdominal pain. | |||
* Flinn Scientific: [https://www.flinnsci.com/sds_511-methyl-ethyl-ketone/sds_511/ SDS] | |||
* EPA lists MEK as hazardous waste due to ignitability; concentrations over 10% must be disposed of appropriately | |||
== | == Physical and Chemical Properties == | ||
Miscible with water, ethanol, ether, benzene and oils. | Miscible with water, ethanol, ether, benzene and oils. | ||
| Line 22: | Line 40: | ||
|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| -86.4 | | -86.4 C | ||
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| 0.805 | | 0.805 g/ml | ||
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
| Line 34: | Line 52: | ||
|- | |- | ||
! scope="row"| Boiling Point | ! scope="row"| Boiling Point | ||
| 79.6 | | 79.6 C | ||
|} | |} | ||
== Comparisons == | == Comparisons == | ||
| Line 47: | Line 59: | ||
[[media:download_file_135.pdf|Properties of Common Solvents]] | [[media:download_file_135.pdf|Properties of Common Solvents]] | ||
==Resources and Citations== | |||
== | |||
* R. J. Gettens, G.L. Stout, ''Painting Materials, A Short Encyclopaedia'', Dover Publications, New York, 1966 Comment: acts well on cellulose acetate | * R. J. Gettens, G.L. Stout, ''Painting Materials, A Short Encyclopaedia'', Dover Publications, New York, 1966 Comment: acts well on cellulose acetate | ||
Latest revision as of 14:24, 17 April 2024
Description
A colorless liquid solvent with an acetone-like odor. Methyl ethyl ketone, or MEK, is used as a solvent for cellulose nitrate lacquers, vinyl films, acrylic coatings, inks, and alkyd ( Glyptal) resins. It is also used as a component in paint removers and dry cleaning fluids. MEK does not dissolve cellulose acetate or most waxes.
Synonyms and Related Terms
2-butanone; MEK; ethyl methyl ketone; ethylmethyl ketone; 2-oxobutane; methyl acetone; methylethyl ketone
Risks
- Flammable. Flash point = -9C Dangerous fire risk. Explosive in limits air 2-10%.
- Toxic by inhalation.
- Skin contact causes dermatitis.
- Ingestion causes vomiting and abdominal pain.
- Flinn Scientific: SDS
- EPA lists MEK as hazardous waste due to ignitability; concentrations over 10% must be disposed of appropriately
Physical and Chemical Properties
Miscible with water, ethanol, ether, benzene and oils.
| Composition | CH3COCH2CH3 |
|---|---|
| CAS | 78-93-3 |
| Melting Point | -86.4 C |
| Density | 0.805 g/ml |
| Molecular Weight | mol. wt.= 72.12 |
| Refractive Index | 1.379 |
| Boiling Point | 79.6 C |
Comparisons
Resources and Citations
- R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966 Comment: acts well on cellulose acetate
- Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993 Comment: does not dissolve cellulose acetate and most waxes
- Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 6149; ref. index=1.379
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.377