| 词条 | Methyl butyrate |
| 释义 |
| Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 447393311 | Reference = [1] | Name = Methyl butyrate | ImageFile1 = Methyl butyrate-2D-by-AHRLS-2012.png | ImageName1 = Methyl butanoate | ImageFile2 = Methyl butyrate 3D.png | ImageName2 = Ball-and-stick model | PIN = Methyl butanoate | OtherNames = Butanoic acid methyl ester Methyl butyrate Butyric acid methyl ester |Section1={{Chembox Identifiers | CASNo_Ref = {{cascite|correct|CAS}} | CASNo = 623-42-7 | RTECS = ET5500000 | SMILES = CCCC(=O)OC | EINECS = 210-792-1 | PubChem = 12180 | ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}} | ChemSpiderID = 11680 | InChI = 1/C5H10O2/c1-3-4-5(6)7-2/h3-4H2,1-2H3 | InChIKey = UUIQMZJEGPQKFD-UHFFFAOYAW | StdInChI_Ref = {{stdinchicite|changed|chemspider}} | StdInChI = 1S/C5H10O2/c1-3-4-5(6)7-2/h3-4H2,1-2H3 | StdInChIKey_Ref = {{stdinchicite|changed|chemspider}} | StdInChIKey = UUIQMZJEGPQKFD-UHFFFAOYSA-N | MeSHName = C043811 |Section2={{Chembox Properties | C=5 | H=10 | O=2 | Appearance = Colorless liquid | Density = 0.898 g/cm3 | Solubility = 1.5{{nbsp}}g/100{{nbsp}}mL (22{{nbsp}}°C) | MeltingPtC = −95 | BoilingPtC = 102 | RefractIndex = 1.386 | MagSus = −66.4×10−6 cm3/mol |Section7={{Chembox Hazards | NFPA-H = 1 | NFPA-F = 3 | NFPA-R = | FlashPtC = 12 }}Methyl butyrate, also known under the systematic name methyl butanoate, is the methyl ester of butyric acid. Like most esters, it has a fruity odor, in this case resembling apples or pineapples.[2] At room temperature, it is a colorless liquid with low solubility in water, upon which it floats to form an oily layer. Although it is flammable, it has a relatively low vapor pressure (40 mmHg at {{convert|30|C|F}}), so it can be safely handled at room temperature without special safety precautions.[3] Methyl butyrate is present in small amounts in several plant products, especially pineapple oil.[4] It can be produced by distillation from essential oils of vegetable origin, but is also manufactured on a small scale for use in perfumes[5] and as a food flavoring. Methyl butyrate has been used in combustion studies as a surrogate fuel for the larger fatty acid methyl esters found in biodiesel.[6] However, studies have shown that, due to its short-chain length, methyl butyrate does not reproduce well the negative temperature coefficient (NTC) behaviour and early CO2 formation characteristics of real biodiesel fuels. Therefore, methyl butyrate is not a suitable surrogate fuel for biodiesel combustion studies.[7] References1. ^Merck Index, 13th Edition {{Esters}}2. ^Methyl butyrate, thegoodscentscompany.com 3. ^Aldrich Chemicals Handbook, Sigma-Aldrich Company, Milwaukee, (2007) 4. ^{{cite journal | doi = 10.1021/jf60168a018 | title = Volatile components of Smooth Cayenne pineapple | year = 1970 | last1 = Flath | first1 = Robert A. | last2 = Forrey | first2 = R. R. | journal = Journal of Agricultural and Food Chemistry | volume = 18 | issue = 2 | pages = 306–309}} 5. ^Use of methyl butyrate as an additive in perfume {{webarchive|url=https://web.archive.org/web/20080531123532/http://ec.europa.eu/enterprise/cosmetics/inci/fragalfm.htm |date=2008-05-31 }} 6. ^Methyl butyrate as a component of biodiesel {{webarchive |url=https://web.archive.org/web/20060306144019/http://www.ingentaconnect.com/content/pep/ije/2004/00000005/00000004/art00002 |date=March 6, 2006 }} 7. ^{{cite journal | doi = 10.1016/j.proci.2006.08.051 | title = A wide-ranging kinetic modeling study of methyl butanoate combustion | year = 2007 | last1 = Gaïl | first1 = S. | last2 = Thomson | first2 = M.J. | last3 = Sarathy | first3 = S.M. | last4 = Syed | first4 = S.A. | last5 = Dagaut | first5 = P. | last6 = Diévart | first6 = P. | last7 = Marchese | first7 = A.J. | last8 = Dryer | first8 = F.L. | journal = Proceedings of the Combustion Institute | volume = 31 | pages = 305–311}} 4 : Methyl esters|Butyrate esters|Perfume ingredients|Flavors |
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