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Properties of substance:

4-methoxybenzoic acid



skc-file

Synonyms:

p-methoxybenzoic acid
anisic acid

Group of substances:

organic

Physical appearance:

colorless monoclinic crystals

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

C8H8O3

Structural formula as text:

CH3OC6H4COOH

Molar/atomic mass: 152.147

Melting point (°C):

185

Boiling point (°C):

280

Solubility (g/100 g of solvent):

1-propanol: 53.8 (0°C) [Ref.]
1-propanol: 75.5 (16.5°C) [Ref.]
chloroform: soluble [Ref.]
diethyl ether: soluble [Ref.]
ethanol: 112.7 (25°C) [Ref.]
methanol: 104.5 (0°C) [Ref.]
methanol: 183.5 (16.5°C) [Ref.]
water: 0.04 (18°C) [Ref.]

Density:

1.385 (4°C, g/cm3)

Dissociation:

pKa (1) = 4.49 (25°C, water)

LD50 (mg/kg):

400 (mice, subcutaneous)

References:

  1. Buckingham J. B., Baggaley K. H., Roberts A. D., Szabo L. F. Dictionary of Alkaloids. - 2 ed. - CRC Press, 2010. - pp. 1220
  2. Journal of Physical and Chemical Reference Data. - 2013. - Vol. 42, No. 3. - pp. 033103-428 - 033103-441
  3. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 265
  4. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 591-592
  5. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 480
  6. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 124 [Russian]
  7. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 494 [Russian]
  8. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1143 [Russian]
  9. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 434-435 [Russian]
  10. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 85 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru