tert-Amyl methyl ether

tert-Amyl methyl ether[1][2]
IUPAC name

2-methoxy-2-methylbutane
Identifiers
Abbreviations TAME
CAS number 994-05-8 Y
PubChem 61247
ChemSpider 55188 Y
Jmol-3D images Image 1
Properties
Molecular formula C6H14O
Molar mass 102.17 g mol−1
Appearance Clear, colorless liquid
Density 3.52 (vapor)
Melting point

-80 °C, 193 K, -112 °F
Boiling point

86.3 °C, 359 K, 187 °F
Solubility in water 10.71 g/L at 20 °C
Refractive index (nD) 1.3896
Viscosity Low
Hazards
Flash point -11 °C
Autoignition
temperature		 430 °C
Explosive limits Upper Explosive Limit = 7.1 % Lower Explosive Limit = 1.0
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

tert-Amyl methyl ether (TAME) is an ether used as a fuel oxygenate. It has an ethereous odor.[1] Unlike most ethers, does not form peroxides on storage.

Contents

Uses

TAME is mostly used as an oxygenate to gasoline. It is added for three reasons: to increase octane enhancement, to replace banned tetraethyl lead, and to raise the oxygen content in gasoline. It is known that TAME in fuel reduces exhaust emissions of some volatile organic compounds.[1]

Toxicity

When exposed to lab rats at 4000 ppm only 25% survived, the rats that died, died of central nervous system depression.[3]

See also

References

  1. ^ a b c "tert-AMYL METHYL ETHER (1,1-DIMETHYLPROPYL METHYL ETHER)". chemicalland21.com. http://chemicalland21.com/industrialchem/solalc/tert-AMYL%20METHYL%20ETHER.htm. Retrieved 2009-10-20. 
  2. ^ National Industrial Chemicals Notification and Assessment Scheme (2001). "t-Amyl methyl ether (TAME)" (PDF). Full Public Reports. http://www.nicnas.gov.au/publications/car/new/na/nafullr/na0800fr/na878fr.pdf. Retrieved 2009-10-20. 
  3. ^ White, Russell D.; Daughtrey, Wayne C.; Wells, Mike S. (December 1995). "Health effects of inhaled tertiary amyl methyl ether and ethyl tertiary butyl ether". Toxicology Letters 82-83: 719–724. doi:10.1016/0378-4274(95)03590-7. PMID 8597132.