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Properties of substance:

3-methoxybenzoic acid

Group of substances:

organic

Physical appearance:

colorless needles crystals

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

C8H8O3

Structural formula as text:

CH3OC6H4COOH

Molar/atomic mass: 152.147

Melting point (°C):

108

CAS №: 586-38-9

Solubility (g/100 g of solvent):

benzene: soluble [Ref.]
carbon tetrachloride: sparingly soluble [Ref.]
chloroform: very soluble [Ref.]
diethyl ether: very soluble [Ref.]
ethanol: very soluble [Ref.]
water: 0.195 (37°C) [Ref.]
water: very soluble (100°C) [Ref.]

Vapour pressure (Torr):

10 (172°C)

Dissociation:

pKa (1) = 4.09 (25°C, water)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-348
  2. Journal of Physical and Chemical Reference Data. - 2013. - Vol. 42, No. 3. - pp. 033103-425 - 033103-428
  3. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 265
  4. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 479
  5. Альберт А., Сержент Е. Константы ионизации кислот и оснований. - М.-Л.: Химия, 1964. - pp. 122 [Russian]
  6. Справочник химика. - 2 изд., Т. 2. - Л.-М.: Химия, 1964. - pp. 496-497 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru