Ethyl Tert-Butyl Ether (ETBE)
These resources provide information on ethyl tert-butyl ether (ETBE) (synonyms: ethyl tertiary-butyl ether, 2-methyl-2-ethoxypropane, tert-butyl ethyl ether, ethyl tert-butyl oxide, and 2-ethoxy-2-methylpropane), including its chemical properties, fate and transport, handling, and health impacts. For information on other oxygenates, return to the oxygenates main page.
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- Technical Product Bulletin: ETBE 2006.
Prepared by the European Fuel Oxygenates Association, this bulletin provides information on ETBE, including its physical properties, materials compatibility, and health impacts.
Assessment, Characterization, And Analysis
- GC/MS Analysis of MTBE, ETBE, and TAME in Gasolines 1994.
Published in Analytical Chemistry, this paper presents the results of research on the use of analysis of MTBE, ETBE, and TAME in gasoline.
- Laboratory Method for Analysis of Small Concentrations of Methyl Tert-Butyl Ether and Other Ether Gasoline Oxygenates in Water 1998.
Prepared by the U.S. Geological Survey, this fact sheet presents a method using purge-and-trap capillary-column gas chromatography/mass spectrometry for the analysis of nanogram-per-liter concentrations of MTBE, TAME, DIPE, and ETBE.
Characteristics And Chemical Properties
- Chemical Profile for ETHYL TERT-BUTYL ETHER (CAS Number: 637-92-3) 2005.
Provided by Scorecard, an online resource for information about pollution problems and toxic chemicals, this Web page provides basic ETBE-related information and links to other resources.
- Material Safety Data
Sheet: Ethyl Tert-Butyl Ether (PDF) (9 pp, 76K, About PDF) 2008.
Prepared by the Chevron Phillips Chemical Company, this material safety data sheet provides detailed information on ETBE, including its properties and safety information.
Handling And Use
- Alternative Fuels Research Strategy. Review Draft (PDF) (520 pp, 2.44MB, About PDF) 1992. EPA 600/AP-92/002.
Prepared by EPA's Office of Research and Development, this report lays a foundation for developing the scientific information needed to compare the benefits and risks of various motor vehicle fuels, especially alternative and reformulated fuels, in relation to conventional gasoline and diesel fuels. MTBE, ETBE, and ethanol are discussed.
- Oxygenate Compatibility and Permeability Report (PDF) (18 pp, 61K, About PDF) 1999.
This UST Team 1 report presents the results of a literature review and industry survey to explore the compatibility of oxygenates including methanol, ethanol, MTBE, ETBE, TAME, and DIPE with materials used in underground storage tank systems.
Health And Safety
- Effects of a Thirteen-Week Inhalation Exposure to Ethyl Tertiary Butyl Ether on Fischer-344 Rats and CD-1 Mice 1999.
Published in Toxicological Sciences, this paper presents the results of research of the toxic effects of ETBE inhalation exposure in rats.
- Prediction of the metabolism and toxicological profiles of gasoline oxygenates 1997.
Published in Inhalation Toxicology, this paper presents an evaluation of MTBE, ETBE, TAME, and DIPE human health risks.
- Rat Olfactory Mucosa Displays a High Activity in Metabolizing Methyl tert-butyl Ether and Other Gasoline Ethers (PDF) (6 pp, 457K, About PDF) 1997.
Published in Applied Toxicology, this paper presents the results of research on the ability of the olfactory mucosa of rats to metabolize MTBE, ETBE, and TAME.
- Toxicokinetics and Acute Effects of MTBE and ETBE in Male Volunteers 1995.
Published in Toxicology Letters, this paper presents research results on the health effects of MTBE and ETBE, including inhalation exposures and metabolism.
- Toxicokinetics of Ethers Used as Fuel Oxygenates 2001.
Published in Toxicology Letters, this paper summarizes the toxicokinetics and biotransformation of MTBE, ETBE, and TAME in rats and humans.
- Toxicology and Human Health Effects Following Exposure to Oxygenated or Reformulated Gasoline 2001.
Published in Toxicology Letters, this paper reviews the current understanding of the toxicology and health impacts of MTBE, ETBE, TAME, and ethanol. Environmental exposure, compound fate and health risks, epidemiological and clinical studies, animal studies, metabolic and kinetic studies, and regulatory classification/response are discussed.
Transport And Fate
- Anaerobic Biotransformation of Fuel Oxygenates under Sulfate-Reducing Conditions 2001.
Published in Microbiology Ecology, this paper presents the results of research on the anaerobic biotransformation of MTBE, ETBE, and TAME under different anoxic electron-accepting conditions.
- Evaluation of the Impact of Fuel Hydrocarbons and Oxygenates on Groundwater Resources 2004.
Published in Environmental Science & Technology, this paper presents the results of a study evaluating the potential for ground water resource contamination by fuel hydrocarbons and oxygenates, including TBA, TAME, DIPE, ETBE, and MTBE. Occurrence, distribution, and spatial extent in ground water beneath leaking underground storage tanks are discussed.
- Cowan, R.M., and K. Park. 1996. Biodegradation of the Gasoline Oxygenates MTBE, ETBE, TAME, TBA, and TAA by Aerobic Mixed Cultures. Proceedings of the 28th Mid Atlantic Industrial and Hazardous Waste Conference, Buffalo, New York, July 15-17, 1996. 523-530.