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Properties of substance:

methyl 2-hydroxybenzoate

Synonyms:

methyl salicylate

Group of substances:

organic

Physical appearance:

colorless liquid

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

C8H8O3

Structural formula as text:

HOC6H4COOCH3

Molar/atomic mass: 152.147

Melting point (°C):

-8.6

Boiling point (°C):

223.3

Decomposition temperature (°C):

340-350

CAS №: 119-36-8

Solubility (g/100 g of solvent):

acetone: 1010 (30°C) [Ref.]
chloroform: very soluble [Ref.]
diethyl ether: miscible [Ref.]
ethanol: miscible [Ref.]
ethanol 50%: 6.6 (25°C) [Ref.]
ethanol 80%: 257 (25°C) [Ref.]
propylene glycol: 24.7 (25°C) [Ref.]
water: 0.064 (21°C) [Ref.]
water: 0.07 (30°C) [Ref.]

Density:

1.181 (25°C, g/cm3)

Vapour pressure (Torr):

0.0075 (-1°C)
0.075 (22°C)
0.75 (51°C)
7.5 (88.8°C)
75 (141.8°C)
750 (219.9°C)

Permittivity (dielectric constant):

8.8 (41.2°C)

Viscosity (mPa·s):

1.102 (75°C)
0.815 (100°C)
3.3 (20°C)

Surface tension (mN/m):

40.98 (10°C)
39.22 (25°C)
36.28 (50°C)
33.35 (75°C)
30.41 (100°C)
40.3 (20°C)

Molar heat capacity at constant pressure Cp (298 K, J/(mol·K))

249 (l) [Ref.]

Enthalpy (heat) of vaporization at boiling point ΔvapH (kJ/mol)

46.7 (l) [Ref.]

References:

  1. Armarego W. L. F. Purification of Laboratory Chemicals. - 7ed. - 2013. - pp. 352
  2. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-396
  3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 592-593
  4. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 478
  5. Беликов В.Г. Учебное пособие по фармацевтической химии. - М.: Медицина, 1979. - pp. 174 [Russian]
  6. Войткевич С.А. 865 душистых веществ для парфюмерии и бытовой химии. - М.: Пищевая промышленность, 1994. - pp. 481 [Russian]
  7. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 938-939 [Russian]
  8. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 534 [Russian]
  9. Халецкий А.М. Фармацевтическая химия. - Л.: Медицина, 1966. - pp. 173-174 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru