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Properties of substance:

4-methoxybenzaldehyde



skc-file

Synonyms:

p-anisaldehyde

Group of substances:

organic

Physical appearance:

colorless oily liquid

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

C8H8O2

Structural formula as text:

CH3OC6H4CHO

Molar/atomic mass: 136.148

Melting point (°C):

1

Boiling point (°C):

248

Solubility (g/100 g of solvent):

acetone: very soluble [Ref.]
ammonia liquid : 233 (20°C) [Ref.]
benzene: soluble [Ref.]
chloroform: very soluble [Ref.]
diethyl ether: miscible [Ref.]
ethanol: miscible [Ref.]
glycerol: slightly soluble [Ref.]
water: 0.2 (20°C) [Ref.]

Density:

1.119 (20°C, g/cm3)

Reactions:

  1. Yeild 78-84%. [Ref.1]
    CH3OC6H4CHO + CH2(COOH)2 → CH3OC6H4CH=CHCOOH + H2O + CO2
  2. Yeild 20-35%. [Ref.1]
    CH3OC6H4CHO + (CH3CO)2O → CH3OC6H4CH=CHCOOH + CH3COOH
  3. Yeild 60%. [Ref.1]
    CH3OC6H4CHO + CH3CH2CHN2 → CH3OC6H4C(O)CH2CH2CH3 + N2
  4. [Ref.1]
    CH3OC6H4CHO + 2CH3CONH2 → CH3OC6H4CH(NHCOCH3)2 + H2O

Refractive index (nD):

1.573 (20°C)

Vapour pressure (Torr):

0.0075 (9°C)
0.03 (25°C)
0.075 (35°C)
0.75 (68.1°C)
2 (83°C)
5 (107°C)
7.5 (110.8°C)
10 (118°C)
12 (135°C)
75 (167.9°C)
750 (248.5°C)

Retention indices for gas chromatography:

1222,7 (phase - 100% dimethylsilicone)
1251,8 (phase - dimethylsilicone with 5% phenyl groups)

Permittivity (dielectric constant):

22 (30°C)

Flash point (°C):

108

Autoignition temperature (°C):

258

LD50 (mg/kg):

1510 (rats, oral)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 3-328, 6-93, 6-161, 8-108, 15-18
  2. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 264
  3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 588
  4. The Merck Index 11th ed., Merck & Company, 1989. - pp. 697
  5. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 474
  6. Каррер П. Курс органической химии. - 2-е изд., под ред. Колосова М.Н. - Л.: ГНТИХЛ, 1962. - pp. 629 [Russian]
  7. Краткая химическая энциклопедия. - Т. 1: А-Е. - М.: Советская энциклопедия, 1961. - pp. 232 [Russian]
  8. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 124 [Russian]
  9. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 910 [Russian]
  10. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 434-435 [Russian]
  11. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 168 [Russian]
  12. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 48 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru