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Properties of substance:

picolinic acid

Synonyms:

2-pyridinecarboxylic acid

Group of substances:

organic

Physical appearance:

needles crystals

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

C6H5NO2

Structural formula as text:

C5H4NCOOH

Molar/atomic mass: 123.10995

Melting point (°C):

137

Solubility (g/100 g of solvent):

benzene: difficulty soluble [Ref.]
carbon disulphide: insoluble [Ref.]
chloroform: difficulty soluble [Ref.]
diethyl ether: difficulty soluble [Ref.]
ethanol: 6.89 (25°C) [Ref.]
water: very soluble [Ref.]

Dissociation:

pKa (1) = 5.32 (25°C, water)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-474
  2. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 876-877 [Russian]
  3. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 92 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru