| IUPAC name
| Other names
|Molar mass||155.97 g/mol|
|Appearance|| Colorless liquid|
Brownish liquid (old sample)
|Density||1.9308 g/cm3 (at 20 °C)|
|Melting point||−111.10 °C (−167.98 °F; 162.05 K)|
|Boiling point||71.5 to 73.3 °C (160.7 to 163.9 °F; 344.6 to 346.4 K)|
|4 g/L (at 20 °C)|
|Solubility||Miscible with alcohol, diethyl ether|
|Vapor pressure||17.7 kPa|
|Viscosity||5.925 mPa s (at 20 °C)|
|Safety data sheet||ScienceLab|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Ethyl iodide or iodoethane is an organic chemical compound of iodine, which appears as a colorless dense liquid (older samples have a brownish or yellowish color), insoluble in water but miscible with other solvents. It has the chemical formula CH3CH2I, sometimes written as EtI.
Like most alkyl iodides, ethyl iodide hydrolyzes in the presence of an alkali:
- CH3CH2I + MOH → CH3CH2OH + MI
Ethyl iodide is a dense, colorless (though old samples have a brownish color) liquid, immiscible in water, but miscible with many solvents such as diethyl ether, ethanol, methanol. Ethyl iodide is toxic and has a strong ether-like odor. It has a density of 1.9308 g/cm3 at 20 °C.
Ethyl iodide is sold by various chemical suppliers, though it's difficult to acquire by the amateur chemist.
- 3 CH3CH2OH + PI3 → 3 CH3CH2I + H3PO3
- Make esters
- Diethyl zinc synthesis
Ethyl iodide is toxic and carcinogenic.
Iodoethane MUST be kept away from heavy metals as it reacts to form extremely toxic heavy ethyl iodides, which are more toxic than their corresponding metals. AVOID contact with their amalgam, as this yields their volatile, extremely toxic and quite deadly organometallic derivatives.
Ethyl iodide must be stored in amber bottles, in dark well ventilated places, away from light. Copper or silver wire can be added as a stabilizer.
Ethyl iodide can be hydrolyzed to ethanol with sodium hydroxide, which can be either burned or recycled if necessary.
- Kibardin, A.M.; Gryaznov, P.I.; Gazizov, T.Kh.; Pudovik, A.N.; Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation); vol. 33; nb. 10; (1984); p. 2166 - 2168