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Names | |||
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Preferred IUPAC name
Chloroethane | |||
Other names | |||
Identifiers | |||
3D model (JSmol)
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ChEBI | |||
ChEMBL | |||
ChemSpider | |||
ECHA InfoCard | 100.000.755 | ||
KEGG | |||
PubChem CID
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RTECS number |
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UNII | |||
CompTox Dashboard (EPA)
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Properties | |||
C2H5Cl | |||
Molar mass | 64.51 g·mol−1 | ||
Appearance | Colorless gas | ||
Odor | Pungent, ethereal[2] | ||
Density | 0.921 g/cm3 (0-4 °C)[3] 0.8898 g/cm3 (25 °C) | ||
Melting point | −138.7 °C (−217.7 °F; 134.5 K) | ||
Boiling point | 12.27 °C (54.09 °F; 285.42 K) decomposes at 510 °C[4] | ||
0.447 g/100 mL (0 °C) 0.574 g/100 mL (20 °C)[5][4] | |||
Solubility | Soluble in alcohol, ether[6] | ||
Solubility in ethanol | 48.3 g/100 g (21 °C)[4] | ||
Vapor pressure | 8.4 kPa (-40 °C) 62.3 kPa (0 °C)[7] 134.6 kPa (20 °C)[2] | ||
Henry's law
constant (kH) |
11.1 L·atm/mol (24 °C)[2] | ||
Refractive index (nD)
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1.3676 (20 °C) 1.001 (25 °C)[2] | ||
Viscosity | 0.279 cP (10 °C)[2] | ||
Structure | |||
2.06 D | |||
Thermochemistry | |||
Heat capacity (C)
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104.3 J/mol·K[4] | ||
Std molar
entropy (S⦵298) |
275.7 J/mol·K[4] | ||
Std enthalpy of
formation (ΔfH⦵298) |
-137 kJ/mol[4][7] | ||
Gibbs free energy (ΔfG⦵)
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-59.3 kJ/mol[4] | ||
Pharmacology | |||
N01BX01 (WHO) | |||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards
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Flammable | ||
GHS labelling: | |||
[3] | |||
Danger | |||
H220, H351, H412[3] | |||
P210, P273, P281, P410+P403[3] | |||
NFPA 704 (fire diamond) | |||
Flash point | −43 °C (−45 °F; 230 K) open cup[5] −50 °C (−58 °F; 223 K) closed cup[3][6] | ||
494 to 519 °C (921 to 966 °F; 767 to 792 K)[4][6] | |||
Explosive limits | 3.8%-15.4%[8] | ||
Lethal dose or concentration (LD, LC): | |||
LC50 (median concentration)
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59,701 ppm (rat, 2 hr) 54,478 ppm (mouse, 2 hr) [9] | ||
LCLo (lowest published)
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40,000 ppm (guinea pig, 45 min)[9] | ||
NIOSH (US health exposure limits): | |||
PEL (Permissible)
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TWA 1000 ppm (2600 mg/m3)[8] | ||
REL (Recommended)
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Handle with caution in the workplace.[8] | ||
IDLH (Immediate danger)
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3800 ppm[8] | ||
Legal status | |||
Related compounds | |||
Related haloalkanes
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1,1-dichloroethane 1,2-dichloroethane | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chloroethane, commonly known as ethyl chloride, is a chemical compound with chemical formula CH3CH2Cl, once widely used in producing tetraethyllead, a gasoline additive. It is a colorless, flammable gas or refrigerated liquid with a faintly sweet odor.[11]
Ethyl chloride was first synthesized by Basil Valentine by reacting ethanol and hydrochloric acid in 1440.[11] Glauber made it in 1648 by reacting ethanol and zinc chloride.[11]
Ross
was invoked but never defined (see the help page).