Butane (/ ˈ b juː t eɪ n /) or n-butane is an alkane with the formula C 4 H 10.Butane is a gas at room temperature and atmospheric pressure. Butane (/ˈbjuːteɪn/) or n-butane is an alkane with the formula C4H10. Sorry, your message could not be sent at this time. Who "spent four years refusing to accept the validity of the [2016] election"? Select a region with data to zoom. All rights reserved. MathJax reference. click the mouse on the plot to revert to the orginal display. All mass spectra in this site (plus many more) are Both give you comparable carbocations. @MelanieShebel Not dupey enough, I think, nice from you though :). Standard Reference Data Act. Use or mention of technologies or programs in this web site is not This makes it very plausible that the carbocation is kinetically favored. Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. jcamp-plot.js. Butane canisters global market is dominated by South Korean manufacturers. 1.) This is caused by a different ion than the corresponding peak in the pentane mass spectrum. What could cause SQL Server to deny execution of a SP at first, but allow it later with no privileges change? Please enable Javascript in your browser. What is the name of this game with a silver-haired elf-like character? Butane is a highly flammable, colorless, easily liquefied gas that quickly vaporizes at room temperature. [citation needed], Inhalation of butane can cause euphoria, drowsiness, unconsciousness, asphyxia, cardiac arrhythmia, fluctuations in blood pressure and temporary memory loss, when abused directly from a highly pressurized container, and can result in death from asphyxiation and ventricular fibrillation. Why is the molecular peak not observed in the mass spectrum of 2,2-dimethylbutane? [15], As fuel, it is often mixed with small amounts of hydrogen sulfide and mercaptans which will give the unburned gas an offensive smell easily detected by the human nose. The purpose of the fee is to recover costs associated The following components were used in generating the plot: Additonal code used was developed at NIST: in these sites and their terms of usage. Hence, the induced fragmentation processes are highly endothermic, and should be under kinetic control. its accompanying search program. NIST subscription sites provide data under the Is there a puzzle that is only solvable by assuming there is a unique solution? It is used as a petrol component, as a feedstock for the production of base petrochemicals in steam cracking, as fuel for cigarette lighters and as a propellant in aerosol sprays such as deodorants.[14]. 1955: When Marty couldn't use the time circuits anymore was the car still actually driveable? This MassBank Record with Accession JP009301 contains the MS mass spectrum of 'BUTANE'. The system operating pressure for butane is lower than for the halomethanes, such as R-12, so R-12 systems such as in automotive air conditioning systems, when converted to pure butane will not function optimally and therefore a mix of isobutane and propane is used to give cooling system performance comparable to R-12. NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data) Butane is denser than air. Why are isotopes an issue in reading mass spectra? Minimum resolution to acquire exact mass on a spectra from m/z peak. By using this website, you agree to the use of cookies in accordance with our guidelines. 1. by the U.S. Secretary of Commerce on behalf of the U.S.A. This MassBank Record with Accession JP009304 contains the MS mass spectrum of 'BUTANE (D10)' with the InChIKey 'IJDNQMDRQITEOD-MWUKXHIBSA-N'. why is tertiary carbocation more stable than primary allylic carbocation? on behalf of the United States of America. However, the hydrogen radical is far less stable than the methyl radical, and I assume this is the reason for the regioselectivity, here. the library and What is the reasoning behind nighttime restrictions during pandemic? [21], Except where otherwise noted, data are given for materials in their, Contaminants are not used in fragrance extraction, National Institute for Occupational Safety and Health, "Safety Data Sheet, Material Name: N-Butane", "Entrepreneur overcame hardships of Chinese prison", "Trends in death Associated with Abuse of Volatile Substances 1971–2004", "Emission of Nitrogen Dioxide from Butane Gas Heaters and Stoves Indoors", Hydrogen chalcogenides (Group 16 hydrides), https://en.wikipedia.org/w/index.php?title=Butane&oldid=986064820, GABAA receptor positive allosteric modulators, Short description is different from Wikidata, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Articles with unsourced statements from May 2019, All Wikipedia articles needing clarification, Wikipedia articles needing clarification from May 2019, Creative Commons Attribution-ShareAlike License, −140 to −134 °C; −220 to −209 °F; 133 to 139 K. Butane fuel canisters for use in camping stoves. The mass of 2-ethoxybutane is 102, so if we look at the 87 peak for example, it has a mass 15 less than 2-ethoxybutane, and so it must have lost a CH 3 group (CH 3 has an Mr of 15). Your message has been sent. While hydrogen sulfide and mercaptans are toxic, they are present in levels so low that suffocation and fire hazard by the butane becomes a concern far before toxicity. [citation needed] Most commercially available butane also contains a certain amount of contaminant oil which can be removed through filtration but which will otherwise leave a deposit at the point of ignition and may eventually block the uniform flow of gas. The important point is the following: You propose that instead of loosing the methylradical, yielding a secondary carbocation (or a tertiary, considering the argument from above), there should be a loss of a hydrogen radical. The maximum adiabatic flame temperature of butane with air is 2,243 K (1,970 °C; 3,578 °F). Mass spectra is a plot of relative abundance against mass-to-charge ratio. Mass spectral interpretation is the method employed to identify the chemical formula, characteristic fragment patterns and possible fragment ions from the mass spectra. Would the Millennium Falcon have been carried along on the hyperspace jump if it stayed attached to the Star Destroyer? How to decline a postdoc offer a few days after accepting it? shall not be liable for any damage that may result from The mass spectrum was acquired on a EI-B with POSITIVE ionisation and has the SPLASH 'splash10-0udi-9000000000-0fa72f2b44366c03bdf8'.

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