Distribution of methyl tert-butyl ether (MTBE) and selected water-quality constituents in the surficial aquifer at the Dover National Test Site, Dover Air Force Base, Delaware, 2001

Distribution of methyl tert-butyl ether (MTBE) and selected water-quality constituents in the surficial aquifer at the Dover National Test Site, Dover Air Force Base, Delaware, 2001 Download PDF EPUB FB2

The chemical formula for methyl tert-butyl ether is C5H12O, and its molecular weight is g/mol. (1,4,5) Methyl tert-butyl ether occurs as a colorless liquid, with a vapor pressure of mm Hg at 25 °C.

Distribution of Methyl Tert-Butyl Ether (MTBE) and Selected Water-Quality Constituents in the Surficial Aquifer at the Dover National Test Site, Dover Air Force Base, Delaware, By Marie Stewart, William R.

Guertal, Jeffrey R. Barbaro, and Timothy J. McHale. This report is available as a pdf. ABSTRACT. The biotransformation of methyl tert-butyl ether (MTBE), ethyl tert-butyl ether, and tert-amyl methyl ether (TAME) was studied in humans and in rats after inhalation of 4 and 40 ppm of MTBE, ETBE, and TAME, respectively, for 4 hours, and the biotransformation of MTBE and TAME was studied after ingestion exposure in humans to 5 and 15 mg in water.

A joint study by the Dover National Test Site, Dover Air Force Base, Delaware, and the U.S. Geological Survey was conducted from June 27 through Jto determine the spatial distribution of the gasoline oxygenate additive methyl tert-butyl ether and selected water-quality constituents in the surficial aquifer underlying the Dover National Test Site.

Methyl tert-butyl ether, also known as methyl tertiary butyl ether and MTBE, is an organic compound. MTBE is a volatile, flammable, and colourless liquid that is immiscible with water. It has a minty odour vaguely reminiscent of diethyl ether, leading to unpleasant taste and odour in water.

The gasoline additive methyl tert-butyl ether (MTBE) was the most frequently detected VOC in drinking water after the THMs. MTBE was detected in percent of the 1, randomly selected CWSs that analyzed samples for MTBE at any reporting level, and it was detected in percent of the 1, CWSs that provided MTBE data at the ?g/L.

The concentrations and distribution of the fuel additive methyl tert-butyl ether has been investigated throughout the estuarine study area.

Concentrations from a few ng/l to a maximum of ng/l are recorded which, from a toxicological viewpoint are unlikely to be a cause for by: Sigma-Aldrich offers a number of tert -Butyl methyl ether products.

View information & documentation regarding tert -Butyl methyl ether, including CAS, MSDS & more. Search results for Methyl tert-butyl ether at Sigma-Aldrich. The release of methyl tert-butyl ether (MTBE) to the environment, mainly from damaged gasoline underground storage tanks or distribution systems spills, has provoked extended groundwater pollution.

tert-Butyl methyl ether Volume 17 1 Toxic Effects and Mode of Action tert-Butyl methyl ether is absorbed readily after inhalation exposure and ingestion, and is distributed rapidly in the organism.

Absorbed tert-butyl methyl ether and the resulting metabolites are rapidly exhaled, and to a lesser extent also eliminated via the kidneys.

Methyl tert-butyl ether (MTBE), also known as tert-butyl methyl ether, is an organic compound with a structural formula (CH 3) 3 COCH is a volatile, flammable, and colorless liquid that is sparingly soluble in water.

It has a minty smell, vaguely reminiscent of diethyl ether, leading to unpleasant taste and odor in is a blending component of gasoline, used as an oxygenate to Chemical formula: C₅H₁₂O.

Other names: Ether, tert-butyl methyl; tert-Butyl methyl ether; Methyl tert-butyl ether; 2-Methoxymethylpropane; 2-Methylmethoxypropane; tert-C4H9OCH3; Methyl t-butyl ether; MTBE; Methyl 1,1-dimethylethyl ether; UN ; Driveron; 1,1-Dimethylethyl methyl ether; t-Butyl methyl ether.

Handbook of Organic Solvent Properties. Book • Authors: Ian M. Smallwood. Browse book content. About the book. Select Methyl tert butyl ether.

Book chapter Full text access. Methyl tert butyl ether. Pages making this book a joy for industrial chemists to use as a desk reference. The properties covered are those which. PERSPECTIVES ON SPECIFIC SUBSTANCES: METHYL tert-BUTYL ETHER FIGURE Annual spill frequency of gasoline with MTBE (7–15%) – • It lowers the gasoline 50% ignition point, thus enhancing cold engine warmup perform- ance.

• Its relatively low taste and odor thresholds provide ample warning of its presence. • It has very low toxicity and does not bioaccumulate.

Distribution of median total trihalomethane concentrations in drinking water from randomly selected community water systems in study area compared by source of water.

35 9. Frequency of detection of methyl tert-butyl ether at or above microgram per liter in drinking waterCited by: The initial oxidation of MTBE and ETBE resulted in the production of nearly stoichiometric amounts of tert-butyl alcohol (TBA), while the initial oxidation of TAME resulted in the production of tert-amyl alcohol.

The methoxy methyl group of MTBE was oxidized to formaldehyde and ultimately to by: An ether having methyl and tert>-butyl as the two alkyl components. ChEBI CHEBI An ether having methyl and tert-butyl as the two alkyl components.

Proposed RoC Listing for Methyl tertiary-Butyl Ether Carcinogenicity Methyl tertiary-butyl ether (MtBE) is reasonably anticipated to be a human carcinogen based on evidence of benign and malignant tumor induction at multiple organ sites in long-term studies in two animal Size: KB. View detailed Import data, price, monthly trends, major importing countries, major ports of methyl tertiary butyl ether under HS Code.

A Gram-negative, rod-shaped, motile, non-pigmented, facultative aerobe that grew optimally at pH and 30 °C (strain PM1T) was isolated for its ability to completely degrade the gasoline additive methyl tert-butyl ether. Analysis of the 16S rRNA gene sequence indicated that this bacterium was a member of the class Betaproteobacteria in the Sphaerotilus–Leptothrix by: The surface tension of dimethoxymethane was measured at temperatures from ( to ) K with a differential capillary rise method (DCRM), together with the surface tension of methyl tert-butyl ether measured at temperatures from ( to ) K.

The uncertainty of temperature is less than ± 10 mK (ITS). The uncertainty of surface tension measurements was estimated to be within ± mNmCited by: Methyl tertiary butyl ether (MTBE) is used as a high-octane additive component that helps gasoline burn cleaner and reduces automobile emissions. Unlike ethanol, MTBE does not increases evaporative emissions from gasoline and is fully fungible in existing gasoline distribution systems.