tert-Amyl methyl ether

tert-Amyl methyl ether^[1][2]

Names
IUPAC name 2-methoxy-2-methylbutane
Identifiers
CAS Number	994-05-8
Abbreviations	TAME
ChemSpider	55188
Jmol interactive 3D	Image
PubChem	61247
InChI InChI=1S/C6H14O/c1-5-6(2,3)7-4/h5H2,1-4H3 Key: HVZJRWJGKQPSFL-UHFFFAOYSA-N InChI=1/C6H14O/c1-5-6(2,3)7-4/h5H2,1-4H3 Key: HVZJRWJGKQPSFL-UHFFFAOYAC
SMILES O(C(C)(C)CC)C
Properties
Chemical formula	C6H14O
Molar mass	102.18 g·mol^−1
Appearance	Clear, colorless liquid
Density	3.52 (vapor)
Melting point	−80 °C (−112 °F; 193 K)
Boiling point	86.3 °C (187.3 °F; 359.4 K)
Solubility in water	10.71 g/L at 20 °C
Refractive index (nD)	1.3896
Viscosity	Low
Hazards
Flash point	−11 °C (12 °F; 262 K)
Autoignition temperature	430 °C (806 °F; 703 K)
Explosive limits	Upper Explosive Limit = 7.1 % Lower Explosive Limit = 1.0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

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

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 rest having died of central nervous system depression.^[3]

See also

• Methyl tert-butyl ether
• Ethyl tert-butyl ether

References

1. "tert-AMYL METHYL ETHER (1,1-DIMETHYLPROPYL METHYL ETHER)". chemicalland21.com. Retrieved 2009-10-20.
2. National Industrial Chemicals Notification and Assessment Scheme (2001). "t-Amyl methyl ether (TAME)" (PDF). Full Public Reports. 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.