An example of PVME phase separation (c P = 5 wt%, c t-Bu = 2 wt%) as observed using variable temperature (VT) 1 H NMR is shown in Fig. The complex between diethyl ether and boron trifluoride is an example. Primarily used as a fuel additive, MTBE is blended into gasoline to increase knock resistance and reduce unwanted emissions. Part 755). tert-Butyl methyl ether (MTBE) is generally considered to be resistant to chemical transformation in aqueous solution. You have to login with your ACS ID befor you can login with your Mendeley account. Vapors heavier than air. The Hydrophilic-Lipophilic Balance (HLB) of EO surfactant is related to the hydrophilic portion of the molecule. Specific Gravity : 0.74 pH : No information found. Note that in almost every case, one of the solvents is water or an aqueous solution. Methyl t-Butyl Ether (MTBE) Methyl t-Butyl Ether (MTBE) is a clear, colorless organic liquid compound. Butyl methyl ether appears as a clear liquid. (Methyl t-butyl ether) National Petrochemical Company(NPC) 6. Methyl t-butyl ether has been used to dissolve gallstones and as a cholesterol control agent in people. 0000001587 00000 n
For payment by credit card, call toll-free, 866-512-1800, or DC area, 202-512-1800, M-F 8 a.m. to 4 p.m. e.s.t. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Methyl t-butyl ether is a colorless liquid with a distinctive anesthetic-like odor. A detailed investigation of degradation pathways using sonolysis has been performed using reaction byproducts identification. H�|W�r�6}�W�#؉�)=Ǝ�����L&�EA[tI*N��wo����xF���݃�Y����,��P�f��B��L?�. Chapter Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. ethyl alcohol (C 2 H 6 O) The normal boiling point of ethyl alcohol is 78.5 o C (i.e., a liquid at room temperature). tert-Butyl alcohol, also called tert-butanol or t-butanol, is the simplest tertiary alcohol, with a formula of (CH 3) 3 COH (sometimes represented as t-BuOH).It is one of the four isomers of butanol. The boiling point of butyl alcohol (MW = 74) is 117.7 °C. tert-Butyl alcohol is a colorless solid, which melts near room temperature and has a camphor-like odor.It is miscible with water, ethanol and diethyl ether Methyl Tertiary Butyl Ether (MTBE); Advance Notice of Intent to Initiate Rulemaking Under the Toxic Substances Control Act to Eliminate or Limit the Use of MTBE as a Fuel Additive in Gasoline, 65 Fed.Reg. How to decrease solubility of organic substance in aqueous layer. 0000059847 00000 n
Symbol GHS02,GHS07,GHS02,GHS07. Product Identification Synonyms : 2-Methoxy-2-methylpropane; tert-Butyl methyl ether; Methyl 1,1-dimethyl ethyl ether; MTBE CAS No. The complex between diethyl ether and boron trifluoride is an example. The kinetic studies of heat-assisted persulfate oxidation of MTBE under various parameters suggests that the reaction follows the pseudo-first-order kinetics. Add 5 ml of water and note which layer is organic and which is aqueous. trailer
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Methyl tert-butyl ether (MTBE) is commonly used as chemical additive to increase oxygen content and octane rating of reformulated gasoline. 0000001415 00000 n
Find more information about Crossref citation counts. You’ve supercharged your research process with ACS and Mendeley! ... (exp database): 2.50E+02 mm Hg at 25 deg C Water Solubility Estimate from Log Kow (WSKOW v1.41): Water Solubility at 25 deg C (mg/L): 1.98e+004 log Kow used: 0.94 (expkow database) no-melting pt equation used Water Sol (Exper. Structure, properties, spectra, suppliers and links for: tert-Butyl ethyl ether, 637-92-3. Liquid−liquid equilibria (LLE) for the aqueous 1-butyl-3-methylimidazolium bromide ([C4mim]Br) + tri-potassium citrate system have been experimentally determined at T = (278.15, 298.15, and 318.15) K. An empirical nonlinear expression developed by Merchuk was used for reproducing the experimental binodal data. MTBE started to be used in gasoline in the early 1980s as a substitute for tetraethyl lead as an anti-knocking agent [19].It provided oxygen to the combustion reaction, thereby reducing exhaust emissions, although the impact of … For payment by credit card, call toll-free, 866-512-1800, or DC area, 202-512-1800, M-F 8 a.m. to 4 p.m. e.s.t. (1,3) The chemical formula for methyl tert-butyl ether is C5H12O, and its molecular weight is 88.15 g/mol. mixture of tert-butyl methyl ether and water will separate into two layers, with the ether layer (density = 0.74) being on top of the water layer (density = 1.0). �bu �����(�^�F�]@C}�3lb��/�Td���O�� MTBE is a volatile, flammable, and colorless liquid that is sparingly soluble Hazard statements H225 - H315 - H225 - … MTBE and other components, commonly known as “oxygenates,” are added to gasoline to Get article recommendations from ACS based on references in your Mendeley library. 0000077599 00000 n
NO open flames, NO sparks and NO smoking. The monograph also details the following specifications and corresponding tests for verifying that a substance meets ACS Reagent Grade specifications including: Assay, Color (APHA), Peroxide, Residue after Evaporation, Water, Ultraviolet Spectrophotometry, Extraction–Concentration Suitability. Search by Systematic name, Synonym, Trade name, Registry number, SMILES or InChI. This review compiles and summarizes relevant information in terms of the use of different adsorbents such as granular … 0000001045 00000 n
This monograph for Methyl tert-Butyl Ether provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), aqueous solubility, and density. It is used as a gasoline additive and to make other chemicals. This lack of reactivity has led to concerns of the long-term impacts of MTBE … MTBE is manufactured by the chemical reaction of methanol and isobutylene. tert-Butyl methyl ether Revision Date 17-Jan-2018 T - Indicates a substance that is the subject of a Section 4 test rule under TSCA. @alwaysclau: “It’s quite an experience hearing the sound of your voice carrying out to a over 100 first year…” 0000003767 00000 n
2020-12-05T16:56:07Z http://informea.pops.int/Chemicals/Chemicals.svc/Fras(102) http://informea.pops.int/Chemicals/Chemicals.svc/Fras(102) Solubility in water: 4.8% at 20°C: Solubility of water in methyl t-butyl ether: 1.5% at 20°C : Regulatory and Safety Data : DOT Proper Shipping Name: Methyl tert-Butyl Ether: DOT Hazard Class: 3, Flammable Liquid: Packing Group: II: UN Identification Number: UN2398 : Storage Methods for onsite analysis of MTBE in water samples are also needed. tert-Butyl alcohol, also called tert-butanol or t-butanol, is the simplest tertiary alcohol, with a formula of (CH 3) 3 COH (sometimes represented as t-BuOH).It is one of the four isomers of butanol. Sign In; Join Free; VIP; Home; My Chemsrc Account Information; My Buying Leads; My Selling Leads ; Post Buying Lead; Contact Us; 中文版; Article Search; Functional Group Search; … 0000004408 00000 n
ACCIDENTAL RELEASE MEASURES Personal precautions: Use proper personal protective equipment Environmental precautions: Not biodegradable. or fax your order to 202-512-2104, 24 hours a day. For payment by check, write to: US Government Publishing Office - New Orders, P.O. 0000000807 00000 n
XU - Indicates a substance exempt from reporting under the Inventory Update Rule, i.e. The ultrasonic degradation mechanism of methyl tert-butyl ether (MTBE) in aqueous solution is complex because of the competition between hydroxyl radical attack, pyrolysis, and hydrolysis reactions. Focus on:Organic compounds,Active Pharmaceutical Ingredient(s),Nutritional products,Custom synthesis and Contract Manufacturing. In this work, the three fitting parameters of the Merchuk equation were … Methyl tert-butyl ether (MTBE) is widely used as a gasoline oxygenate to reduce automobile emissions of carbon monoxide and compounds involved in photochemical smog formation.Extensive use of MTBE in the United States over the last 25 years has led to widespread contamination of groundwater resources, mainly as a result of leaking underground fuel storage tanks (13, 27, 31).There is … Reviewers, Librarians Alfa Aesar is a leading manufacturer and supplier of research chemicals, pure metals and materials for a wide span of applications. Synonyms. %PDF-1.4
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Vapour/air mixtures are explosive. It is considered to be soluble in water and basic. : 1634 -04 -4 Molecular Weight : 88.15 Chemical Formula : C5H12O It is used as a solvent and gasoline additive. Although dipole-dipole forces and London dispersion … Methyl-T-Butyl EtherOVERVIEWMethyl-t-butyl ether (METH-el TER-she-air-ee BYOO-till EE-thur) is a volatile (evaporates easily), colorless, flammable liquid that forms an azeotropic mixture with water. More hydrophilic groups enable more solubility in water as more hydrogen … Alkyl ethers used in this bioconcentration experiment were 2- (t-butoxy) ethanol, MTBE, and t-butyl isopropyl ether. 0000003806 00000 n
Propane, 2-methoxy-2-methyl-; Ether, tert-butyl methyl; tert-Butyl methyl ether; Methyl tert-butyl ether; 2-Methoxy-2-methylpropane; 2-Methyl-2-methoxypropane; tert-C4H9OCH3; Methyl t-butyl … 0000001261 00000 n
tert-Butyl alcohol is a colorless solid, which melts near room temperature and has a camphor-like odor.It is miscible with water, ethanol and diethyl ether 0000074922 00000 n
If the mixture of naphthalene and glucose is dissolved in tert-butyl methyl ether and mixed well with water, the glucose will mostly dissolve in the lower water phase (phase = layer) and the naphthalene will mostly dissolve in the upper ether phase. Then add 10 mL of a 3 M aqueous solution of sodium bicarbonate to the funnel. Synonym: 1,1-Dimethylpropyl methyl ether, Methyl 2-methyl-2-butyl ether, Methyl tert-pentyl ether, TAME Linear Formula: C 2 H 5 C(CH 3 ) 2 OCH 3 Molecular Weight: 102.17 24, 2000) (to be codified at 40 C.F.R. Please reconnect, Authors & MTBE is widely used in global markets as a gasoline oxygenate. t Alcohols have much higher boiling points than comparable ethers or hydrocarbons. Chemsrc provides Methyl tert-butyl ether(CAS#:1634-04-4) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. For example, the boiling point of diethyl ether (MW = 74) is 34.6 °C; that of pentane (MW = 72) is 36 °C. Methanol is a derived from natural gas, and isobutylene is made from crude oil or natural gas, thus MTBE, as used in motor gasoline, is a fossil fuel. [Google Scholar]), methyl t-butyl ether (8 Wu, T., Cruz, V., Mezyk, S., ... T.-N. (2007) Electrocatalytic oxidation of methyl tert-butyl ether (MTBE) in aqueous solution at a nickel electrode. CAS number Solubility : 4.8 g/100g of water. Special caution is advised for the handling or testing of this substance. For payment by check, write to: US Government Printing Office - New Orders, P.O. It will therefore be more soluble in water than in the relatively less polar ether. Because of widespread releases of MTBE-containing gasoli… May be toxic by inhalation or skin absorption and irritating to skin. Packaging 1, 6×1, 2 L in Sure/Seal™ 100 mL in Sure/Seal™ Safety & Documentation. 0000004625 00000 n
Page 1 of 8 MSD S: METHLY TERT-BUTYL ETHER MATERIAL SAFETY DATA SHEET- (MSDS) METHYL TERT-BUTYL ETHER 1. Reformulated gasoline presently contains approximately 11% (vol/vol) MTBE. Methyl tert-butyl Ether (1634- 04 -4) No No 3 12. Librarians & Account Managers. METHYL tert-BUTYL ETHER 159 3. The widespread use of MTBE in gasoline has led to accidental spills and its discharge into soils … Please note: If you switch to a different device, you may be asked to login again with only your ACS ID. CHEMICAL AND PHYSICAL INFORMATION 3.1 CHEMICAL IDENTITY Methyl tert-butyl ether (MTBE) is a volatile organic compound (VOC) often added to gasoline to reduce air pollution. 0000003286 00000 n
A less common … Ethers may react violently with strong oxidizing agents. Hangzhou DayangChem Co., Ltd. Methyl tert-butyl ether is also called MTBE and tert-butyl methyl ether. 0000006124 00000 n
They form salts with strong acids and addition complexes with Lewis acids. GC Mass Spectrum . IDENTITY, PHYSICAL AND CHEMICAL PROPERTIES, ANALYTICAL METHODS 2.1 Identity Chemical formula: C 5 H 12 O Chemical structure: CH 3 ' H 3 C - C - O - CH 3 ' CH 3 Relative molecular mass: 88.15 Common name: methyl tertiary-butyl ether IUPAC Chemical name: 2-methoxy-2-methyl propane CAS registry number: 1634-04-4 Synonyms: 1,1-dimethylethyl methyl ether; ether tert-butyl methyl; éther … Safety Information. The normal boiling point of methyl ether is -25 o C (i.e., a gas at room temperature). 0000000898 00000 n
methyl tert-butyl ether: ChEBI ID CHEBI:27642: ChEBI ASCII Name methyl tert-butyl ether: Definition An ether having methyl and tert-butyl as the two alkyl components. ELECTRONIC SERVICES. 0000002606 00000 n
(1,4,5) Methyl tert-butyl ether occurs as a colorless liquid, with a vapor pressure of 245 mm Hg at 25 °C. Methods for cleaning up and disposal: Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. The organic solvent must also … Ecological Information Environmental Fate: When released into the soil, this material is not expected to biodegrade . Azeotropic mixtures are combinations of two or more liquids that boil at the same temperature and, therefore, cannot be easily separated from each other.KEY FACTSOTHER … This monograph for Methyl tert-Butyl Ether provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), aqueous solubility, and density. Box 979050, St. Louis, MO 63197-9000. T-BUTYL GLYCIDYL ETHER, an ether, can act as a base. Methyl tert-butyl ether (MTBE), also known as tert-butyl methyl ether, is an organic compound with a structural formula (CH3)3COCH3. The two phases can then be physically separated using a pipet and placed into two separate tubes. Find more information about Crossref citation counts. The observed bi-product distributions are rationalized in terms of … 0000002378 00000 n
Stars This entity has been manually annotated by the ChEBI Team. An ether having methyl and
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