Gamma-Valerolactone
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γ-Valerolactone (GVL) bụ ihe na-emepụta ihe na usoro C5H8O2. Mmiri a na-enweghị ụcha bụ otu n'ime lactones a na-ahụkarị. GVL bụ chiral mana a na-ejikarị ya eme ihe dị ka racemate. A na-enweta ya n'ụzọ dị mfe site na cellulosic biomass ndị na ma bụrụ ihe nwere ike ịgba ọkụ na ihe na-agbanye mmiri.
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
5-Methyloxolan-2-one | |
Other names
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Identifiers | |
CAS Number |
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3D model (JSmol) |
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Beilstein Reference |
80420 |
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ChemSpider | Page Àtụ:Plainlist/styles.css has no content.
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<span title="echa.europa.eu">ECHA InfoCard</span> | 100.003.245 |
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PubChem <abbr title="<nowiki>Compound ID</nowiki>">CID |
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UNII | Page Àtụ:Plainlist/styles.css has no content. |
UN number | 1224 |
CompTox Dashboard (<abbr title="<nowiki>U.S. Environmental Protection Agency</nowiki>">EPA) |
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InChI
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SMILES
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Properties | |
Chemical formula |
C5H8O2 |
Molar mass | 100.116 |
Appearance | colorless liquid |
Density | 1.0546 g/mL (20 °C) [2] |
Melting point | −31 °C (−24 °F; 242 K) |
Boiling point | 205 °C (401 °F; 478 K)[2] |
Solubility in water |
>=100 mg/mL |
Refractive index (nD) |
1.4333 (20 °C) |
Thermochemistry | |
Std enthalpy of<br><br>formation (ΔfH⦵298) |
-461.3 kJ·mol−1 |
Std enthalpy of<br><br>combustion (ΔcH⦵298) |
-2649.6 kJ·mol−1 |
Hazards | |
<b>GHS</b> labelling: | |
Pictograms |
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Signal word |
Warning |
Hazard statements |
H319 |
<b>NFPA 704</b> (fire diamond) |
<span style="color:black;" title="Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform">2</span>
<span style="color:black;" title="Flammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuel">2</span>
<span style="color:black;" title="Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen">0</span> |
Flash point | 81 °C (178 °F; 354 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references |
Close
GVL na-akpa àgwà dị ka ọgwụ na-emepụta γ-hydroxyvaleric acid (GHV), ọgwụ nwere mmetụta yiri nke γ-hydrexybutyric acid (GHB), ọ bụ ezie na ọ nwere ike dị ala ma e jiri ya tụnyere.[3] N'ihi na a na-achịkwa GHB n'ọtụtụ akụkụ nke abụọ ahụ na ihe niile nke obodo ụwa, ebe GVL abụghị, GVL enwetala ewu ewu dị ka onye na-anọchi GHB.[3][4]