Ethyl alcohol
| General | |
|---|---|
| Name | Ethanol |
| Chemical formula | C2H5OH |
| Atomic weight | 46.07 amu |
| CAS number | 64-17-5 |
| UN number | 1170 |
| Phase behavior | |
| Melting point | 158.8 K (-114.3°C;) |
| Boiling point | 351.5 K (78.4°C) |
| Triple point | 159 K (-114°C) |
| Critical point | 514 K (241°C)
63 bar |
| ΔfusH; | 4.9 kJ/mol |
| ΔfusS; | 31 J/mol·K |
| ΔvapH; | 38.56 kJ/mol |
| Solubility | Soluble in water |
| Acid-base properties | |
| pKa | 15.9 |
| Liquid properties | |
| ΔfH0liquid; | -277 kJ/mol |
| S0liquid | 159.9 J/mol·K |
| Cp | 112.4 J/mol·K |
| Density | 789 gram/L |
| Gas properties | |
| ΔfH0gas; | -235.3 kJ/mol |
| S0gas | ? J/mol·K |
| Cp | 65.21 J/mol·K |
| Safety | |
| Acute effects | Nausea, vomiting, CNS depression. Respiratory failure in severe cases. |
| Chronic effects | Dependency. Liver cirrhosis. |
| Flash point | 17°C |
| Autoignition temperature | 425°C |
| Explosive limits | 3.5-15% |
| More information | |
| Properties | NIST WebBook |
| MSDS | Hazardous Chemical Database |
|
Unless otherwise stated, all data was produced under conditions of standard temperature and pressure.
Disclaimer and references | |
Ethyl alcohol, also known as ethanol or grain alcohol, is a flammable, colorless chemical compound, one of the alcohols, that is most often found in alcoholic beverages. In common parlance, it is often referred to simply as alcohol. Its chemical formula is CH3CH2OH.
This article is mostly about ethanol as a chemical compound. For beverages containing ethanol, see alcoholic beverages. For the use of ethanol as a fuel, see alcohol fuel.