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Names | |||
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Preferred IUPAC name
2-Chloroethan-1-ol
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Other names
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Identifiers | |||
3D model (Jmol)
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3DMet | B01042 | ||
878139 | |||
ChEBI | |||
ChemSpider | |||
ECHA InfoCard | 100.003.146 | ||
EC Number | 203-459-7 | ||
25389 | |||
KEGG | |||
MeSH | Ethylene+Chlorohydrin | ||
PubChem CID
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RTECS number | KK0875000 | ||
UNII | |||
UN number | 1135 | ||
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Properties | |||
C2H5ClO | |||
Molar mass | 80.51 g·mol−1 | ||
Appearance | Colourless liquid | ||
Odor | faint, ether-like | ||
Density | 1.201 g mL−1 | ||
Melting point | −62.60 °C; −80.68 °F; 210.55 K | ||
Boiling point | 127 to 131 °C; 260 to 268 °F; 400 to 404 K | ||
miscible | |||
log P | −0.107 | ||
Vapor pressure | 700 Pa (at 20 °C) | ||
Refractive index (nD)
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1.441 | ||
Thermochemistry | |||
Std enthalpy of
combustion (ΔcH |
−1.1914 MJ mol−1 | ||
Hazards | |||
GHS pictograms | |||
GHS signal word | DANGER | ||
H226, H300, H310, H330 | |||
P260, P280, P284, P301+310, P302+350 | |||
EU classification (DSD)
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T+ | ||
R-phrases | R26/27/28 | ||
S-phrases | (S1/2), S45 | ||
NFPA 704 | |||
Flash point | 55 °C (131 °F; 328 K) | ||
425 °C (797 °F; 698 K) | |||
Explosive limits | 5–16% | ||
Lethal dose or concentration (LD, LC): | |||
LD50 (median dose)
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67 mg kg−1(dermal, rabbit) 72 mg/kg (rat, oral) 81 mg/kg (mouse, oral) 71 mg/kg (rat, oral) 110 mg/kg (guinea pig, oral) |
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LC50 (median concentration)
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7.5 ppm (rat, 1 hr) 32 ppm (rat, 4 hr) 260 ppm (guinea pig) 33 ppm (rat, 4 hr) 87 ppm (rat) 115 ppm (mouse) |
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US health exposure limits (NIOSH): | |||
PEL (Permissible)
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TWA 5 ppm (16 mg/m3) [skin] | ||
REL (Recommended)
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C 1 ppm (3 mg/m3) [skin] | ||
IDLH (Immediate danger)
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7 ppm | ||
Related compounds | |||
Related compounds
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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what is ?) | (|||
Infobox references | |||
2-Chloroethanol is an chemical compound with the formula HOCH2CH2Cl and the simplest chlorohydrin. This colorless liquid has a pleasant ether-like odor. It is miscible with water. The molecule is bifunctional, consisting of both an alkyl chloride and an alcohol functional groups.
2-Chloroethanol is produced by treating ethylene with hypochlorous acid:
2-Chloroethanol was once produced on a large scale as a precursor to ethylene oxide:
This application has been supplanted by the greener direct oxidation of ethylene. Otherwise chloroethanol is used in a number of specialized applications. Several dyes are prepared by the alkylation of aniline derivatives with chloroethanol. It is a building block in the production of pharmaceuticals, biocides and plasticizers. It is also used for manufacture of thiodiglycol. It is a solvent for cellulose acetate and ethyl cellulose, textile printing dyes, in dewaxing, refining of rosin, extraction of pine lignin, and the cleaning of machines.
An example is the reaction with theophylline to form Etofylline. Another example is the reaction with chlorphentermine to give Etolorex.