Dichloroacetic acid
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| Names | |||
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| Preferred IUPAC name
Dichloroacetic acid | |||
| Other names
Dichloroethanoic acid, bichloroacetic acid, DCA, BCA, dichloracetic acid, bichloracetic acid
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| Identifiers | |||
CAS Number
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3D model (JSmol)
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Beilstein Reference
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1098596 | ||
| ChEBI | |||
| ChEMBL | |||
| ChemSpider | |||
| DrugBank | |||
| ECHA InfoCard | 100.001.098 | ||
| EC Number |
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Gmelin Reference
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2477 | ||
| KEGG | |||
| MeSH | Dichloroacetate | ||
PubChem CID
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| RTECS number |
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| UNII | |||
| UN number | 1764 | ||
CompTox Dashboard (EPA)
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InChI
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SMILES
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| Properties | |||
Chemical formula
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C2H2Cl2O2 | ||
| Molar mass | 128.94 g·mol−1 | ||
| Appearance | Colorless liquid | ||
| Density | 1.5634 g/cm3 (20 °C) | ||
| Melting point | 9 to 11 °C (48 to 52 °F; 282 to 284 K) | ||
| Boiling point | 194 °C (381 °F; 467 K) | ||
Solubility in water
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miscible | ||
| Solubility | miscible with ethanol, diethyl ether[1] | ||
| Acidity (pKa) | 1.35[1] | ||
Magnetic susceptibility (χ)
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−58.2·10−6 cm3/mol | ||
| Thermochemistry | |||
Std enthalpy of
formation (ΔfH⦵298) |
−496.3 kJ·mol−1[1] | ||
| Hazards | |||
| GHS labelling: | |||
Pictograms
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Signal word
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Warning | ||
Hazard statements
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H314, H400 | ||
Precautionary statements
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P260, P264, P273, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P391, P405, P501 | ||
| NFPA 704 (fire diamond) | |||
| Safety data sheet (SDS) | MSDS (jtbaker) | ||
| Related compounds | |||
Related chloroacetic acids
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Chloroacetic acid Trichloroacetic acid | ||
Related compounds
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Acetic acid Difluoroacetic acid Dibromoacetic acid | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Dichloroacetic acid (DCA), sometimes called bichloroacetic acid (BCA), is the organic compound with formula CHCl2CO2H. It is an analogue of acetic acid, in which 2 of the 3 hydrogen atoms of the methyl group have been replaced by chlorine atoms. Like the other chloroacetic acids, it has various practical applications. The salts and esters of dichloroacetic acid are called dichloroacetates.