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Properties of substance:

2-chlorobenzoic acid

Group of substances:

organic

Physical appearance:

colorless monoclinic crystals

Empirical formula (Hill's system for organic substances):

C7H5ClO2

Structural formula as text:

ClC6H4COOH

Molar/atomic mass: 156.57

Melting point (°C):

140-142

Solubility (g/100 g of solvent):

acetone: 35.97 (15°C) [Ref.]
benzene: 2.02 (26°C) [Ref.]
carbon disulphide: 0.41 (15°C) [Ref.]
carbon tetrachloride: 0.36 (15°C) [Ref.]
diethyl ether: 23.89 (15°C) [Ref.]
ethanol: very soluble [Ref.]
ethyl acetate: 14.7 (15°C) [Ref.]
heptane: 2.64 (79°C) [Ref.]
water: 0.21 (25°C) [Ref.]
water: 4.03 (100°C) [Ref.]

Density:

1.544 (20°C, d4)

Dissociation:

pKa (1) = 2.877 (25°C, water)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-100
  2. Journal of Physical and Chemical Reference Data. - 2013. - Vol. 42, No. 3. - pp. 033103-185 - 033103-189
  3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 473-477
  4. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 349
  5. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 465 [Russian]
  6. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1413, 1475-1477 [Russian]
  7. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 500-501 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru