Ethane
chemical compound
Ethane is an organic chemical compound with chemical formula C2H6.
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| Names | |||
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| Preferred IUPAC name
Ethane[1] | |||
| Systematic IUPAC name
Dicarbane (never recommended[1]) | |||
| Identifiers | |||
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3D model (JSmol)
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| Beilstein Reference | 1730716 | ||
| ChEBI | |||
| ChEMBL | |||
| ChemSpider | |||
| ECHA InfoCard | 100.000.741 | ||
| EC Number |
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| Gmelin Reference | 212 | ||
| MeSH | Ethane | ||
PubChem CID
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| RTECS number |
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| UNII | |||
| UN number | 1035 | ||
CompTox Dashboard (EPA)
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| Properties | |||
| C2H6 | |||
| Molar mass | 30.07 g·mol−1 | ||
| Appearance | Colorless gas | ||
| Odor | Odorless | ||
| Density |
544.0 kg/m−3 (liquid at -88,5 °C) | ||
| Melting point | −182.8 °C; −296.9 °F; 90.4 K | ||
| Boiling point | −88.5 °C; −127.4 °F; 184.6 K | ||
| 56.8 mg L−1[3] | |||
| Vapor pressure | 3.8453 MPa (at 21.1 °C) | ||
| kH | 19 nmol Pa−1 kg−1 | ||
| Acidity (pKa) | 50 | ||
| Basicity (pKb) | -36 | ||
| Conjugate acid | Ethanium | ||
| -37.37·10−6 cm3/mol | |||
| Thermochemistry | |||
| Std enthalpy of formation ΔfH |
−84 kJ mol−1 | ||
| Std enthalpy of combustion ΔcH |
−1561.0–−1560.4 kJ mol−1 | ||
| Specific heat capacity, C | 52.49 J K−1 mol−1 | ||
| Hazards | |||
| NFPA 704 |
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| Explosive limits | 2.9–13% | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
 verify (what is   ?)
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| Infobox references | |||
At standard temperature and pressure, ethane is a colourless, odorless gas. It is isolated from natural gas, and as a byproduct of petroleum refining.
Its main use is in the chemical industry, to make ethylene by steam cracking.
At room temperature, the gas is flammable, and it explodes when mixed with air. When ethane is liquid, touching it causes a very serious frostbite.
References change
- ↑ 1.0 1.1 Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 4. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.
Similarly, the retained names 'ethane', 'propane', and 'butane' were never replaced by systematic names 'dicarbane', 'tricarbane', and 'tetracarbane' as recommended for analogues of silane, 'disilane'; phosphane, 'triphosphane'; and sulfane, 'tetrasulfane'.
- ↑ "Ethane – Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 16 September 2004. Retrieved 7 December 2011.
- ↑ Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. p. 8.88. ISBN 0-8493-0486-5.
