Methyl tert-butyl ether

Methyl tert-butyl ether
Skeletal formula of MTBE
Ball-and-stick model of the MTBE molecule
Names
Preferred IUPAC name
2-Methoxy-2-methylpropane
Other names
  • Methyl tertiary-butyl ether
  • Methyl t-butyl ether
  • MTBE
  • tert-Butyl methyl ether
  • tBME
  • tert-BuOMe
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.015.140 Edit this at Wikidata
KEGG
UNII
  • InChI=1S/C5H12O/c1-5(2,3)6-4/h1-4H3 checkY
    Key: BZLVMXJERCGZMT-UHFFFAOYSA-N checkY
  • InChI=1/C5H12O/c1-5(2,3)6-4/h1-4H3
    Key: BZLVMXJERCGZMT-UHFFFAOYAA
  • O(C(C)(C)C)C
Properties
C5H12O
Molar mass 88.150 g·mol−1
Appearance colourless liquid
Density 0.7404 g/cm3
Melting point −108.6 °C (−163.5 °F; 164.6 K)
Boiling point 55.5 °C (131.9 °F; 328.6 K)
26 g/L (20 °C)[1]
Vapor pressure 27kPa (20ºC)
Viscosity 3.4·10-4 Pa·s (at 25ºC)
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
3
0
Flash point −32.78 °C (−27.00 °F; 240.37 K)
435 °C (815 °F; 708 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Methyl tert-butyl ether (MTBE), also known as tert-butyl methyl ether, is an organic compound with a structural formula (CH3)3COCH3. MTBE is a volatile, flammable, and colorless liquid that is sparingly soluble in water.[1] Primarily used as a fuel additive, MTBE is blended into gasoline to increase its octane rating and knock resistance, and reduce unwanted emissions.[2][3]

  1. ^ a b Record of Methyl tert-butyl ether in the GESTIS Substance Database of the Institute for Occupational Safety and Health
  2. ^ "Methyl tertiary butyl ether prices, markets & analysis". ICIS Explore. Retrieved 2020-06-28.
  3. ^ "Oxygenates". www.api.org. Retrieved 2020-06-28.