Jump to content

Methyl butyrate: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
Added an internal link for biodiesel
Line 38: Line 38:
It is present in small amounts in several plant products, especially pineapple oil.<ref>{{cite journal | doi = 10.1021/jf60168a018}}</ref> It can be produced by [[distillation]] from [[essential oil]]s of vegetable origin, but is also manufactured on a small scale for use in [[perfumes]]<ref>[http://ec.europa.eu/enterprise/cosmetics/inci/fragalfm.htm Use of methyl butyrate as an additive in perfume]</ref> and as a food [[flavouring]].
It is present in small amounts in several plant products, especially pineapple oil.<ref>{{cite journal | doi = 10.1021/jf60168a018}}</ref> It can be produced by [[distillation]] from [[essential oil]]s of vegetable origin, but is also manufactured on a small scale for use in [[perfumes]]<ref>[http://ec.europa.eu/enterprise/cosmetics/inci/fragalfm.htm Use of methyl butyrate as an additive in perfume]</ref> and as a food [[flavouring]].


Methyl butanoate has been used in combustion studies as a surrogate fuel for the larger fatty acid methyl esters found in [[biodiesel]].<ref>[http://www.ingentaconnect.com/content/pep/ije/2004/00000005/00000004/art00002 Methyl butyrate as a component of biodiesel]</ref> However, studies have shown that, due to its short-chain length, methyl butanoate does not reproduce well the [[negative temperature coefficient]] (NTC) behaviour and early CO<sub>2</sub> formation characteristics of real biodiesel fuels. Therefore, methyl butanoate is not a suitable surrogate fuel for biodiesel combustion studies.<ref>[http://dx.doi.org/10.1016/j.proci.2006.08.051 A wide-ranging kinetic modeling study of methyl butanoate combustion]</ref>
Methyl butanoate has been used in combustion studies as a surrogate fuel for the larger fatty acid methyl esters found in [[biodiesel]].<ref>[http://www.ingentaconnect.com/content/pep/ije/2004/00000005/00000004/art00002 Methyl butyrate as a component of biodiesel]</ref> However, studies have shown that, due to its short-chain length, methyl butanoate does not reproduce well the [[negative temperature coefficient]] (NTC) behaviour and early CO<sub>2</sub> formation characteristics of real biodiesel fuels. Therefore, methyl butanoate is not a suitable surrogate fuel for [[biodiesel]] combustion studies.<ref>[http://dx.doi.org/10.1016/j.proci.2006.08.051 A wide-ranging kinetic modeling study of methyl butanoate combustion]</ref>


==References==
==References==

Revision as of 09:38, 6 December 2010

Methyl butyrate[1]
Methyl butanoate
Ball-and-stick model
Names
IUPAC name
Methyl butanoate
Identifiers
3D model (JSmol)
ECHA InfoCard 100.009.812 Edit this at Wikidata
RTECS number
  • ET5500000
  • CCCC(=O)OC
Properties
C5H10O2
Molar mass 102.13 g/mol
Appearance Colourless liquid
Density 898 kg/m³
Melting point -95 °C (178K)
Boiling point 102 °C (375K)
1.5 g/100 mL (22 °C)
1.386
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability (yellow): no hazard codeSpecial hazards (white): no code
1
3
Flash point 12 °C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Methyl butyrate, also known under the systematic name methyl butanoate, is the methyl ester of butyric acid. Like most esters, it has a fruity odour, in this case resembling apples or pineapples. At room temperature, it is a colourless liquid with low solubility in water, upon which it floats to form an oily layer. Although it is flammable, it has a relatively low vapour pressure (40mm Hg at 30OC), so it can be safely handled at room temperature without special safety precautions.[2]

It is present in small amounts in several plant products, especially pineapple oil.[3] It can be produced by distillation from essential oils of vegetable origin, but is also manufactured on a small scale for use in perfumes[4] and as a food flavouring.

Methyl butanoate has been used in combustion studies as a surrogate fuel for the larger fatty acid methyl esters found in biodiesel.[5] However, studies have shown that, due to its short-chain length, methyl butanoate does not reproduce well the negative temperature coefficient (NTC) behaviour and early CO2 formation characteristics of real biodiesel fuels. Therefore, methyl butanoate is not a suitable surrogate fuel for biodiesel combustion studies.[6]

References

  1. ^ Merck Index, 13th Edition
  2. ^ Aldrich Chemicals Handbook, Sigma-Aldrich Company, Milwaukee, (2007)
  3. ^ . doi:10.1021/jf60168a018. {{cite journal}}: Cite journal requires |journal= (help); Missing or empty |title= (help)
  4. ^ Use of methyl butyrate as an additive in perfume
  5. ^ Methyl butyrate as a component of biodiesel
  6. ^ A wide-ranging kinetic modeling study of methyl butanoate combustion