Methyl butyrate
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| MeSH | C043811 |
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| Appearance | Colorless liquid |
| Density | 0.898 g/cm3 |
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| Template:Longitem | −66.4×10−6 cm3/mol |
| Template:Longitem | 1.386 |
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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 Script error: No such module "convert".), 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]
References
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- ↑ Merck Index, 13th Edition
- ↑ Methyl butyrate, thegoodscentscompany.com
- ↑ Aldrich Chemicals Handbook, Sigma-Aldrich Company, Milwaukee, (2007)
- ↑ Script error: No such module "Citation/CS1".
- ↑ Use of methyl butyrate as an additive in perfume Script error: No such module "webarchive".
- ↑ Methyl butyrate as a component of biodiesel Script error: No such module "webarchive".
- ↑ Script error: No such module "Citation/CS1".
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