Names IUPAC nameChloroacetic acid‍‍‍‍‍‍‍‍Systematic IUPAC name‍‍‍‍‍‍‍‍Chloroethanoic acidIdentifiers CAS Number79-11-8ChEBICHEBI:27869ChEMBLChEMBL14090ChemSpider10772140EC Number201-178-4Jmol interactive 3DImageKEGGD07677PubChem300RTECS numberAF8575000UNII5GD84Y125GInChISMILESProperties Chemical formulaC2H3ClO2Molar mass94.49 g·mol−1AppearanceColorless or white crystalsDensity1.58 g·cm−3, solidMelting point63 °C (145 °F; 336 K)Boiling point189.3 °C (372.7 °F; 462.4 K)Solubility in water85.8 g/100mL (25 °C)SolubilitySolublein methanol, acetone, diethyl ether,benzene, chloroform, ethanollog P0.22Vapor pressure0.22 hPaAcidity (pKa)2.86Refractive index(nD)1.4351 (55 °C)Structure Crystal structuremonoclinicThermo chemistry Specificheat capacity (C)144.02 J/K molStd enthalpy offormation(ΔfHo298)-490.1 kJ/molHazards Main hazardsalkylating agentSafety data sheetExternal MSDSR-phrasesR25 R34 R50S-phrasesS23 S37 S45 S61NFPA 704      1      3      0Flash point126 °C (259 °F; 399 K)Autoignitiontemperature< 500 °C (932 °F; 773 K)Lethal dose or concentration (LD, LC):LD50 (Median dose)165 mg/kg (mouse, oral)Related compounds Related compounds‍‍‍‍‍‍2-chloropropionic acidsodium chloroacetate‍‍‍‍‍‍Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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