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Properties of substance:

1,2,4,5-tetramethylbenzene

Synonyms:

durene

Group of substances:

organic

Physical appearance:

colorless monoclinic crystals

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

C10H14

Structural formula as text:

C6H2(CH3)4

Molar/atomic mass: 134.218

Melting point (°C):

79.24

Boiling point (°C):

196.85

Solubility (g/100 g of solvent):

acetic acid: very soluble [Ref.]
benzene: soluble [Ref.]
diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
water: 0.000348 (25°C) [Ref.]

Density:

0.838 (81°C, d4)

Vapour pressure (Torr):

1 (34°C)
10 (73.5°C)
40 (103.7°C)
100 (127.7°C)
400 (172°C)

Retention indices for gas chromatography:

1115,8 (phase - DB-5, temperature-programmed conditions, 6 K/min)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-45.3 (l)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

418.5 (l)

Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

53.4

LD50 (mg/kg):

3400 (white mice, oral)
6700 (rats, oral)

Critical temperature (°C):

411.4

Critical pressure (MPa):

3.2

References:

  1. Dictionary of organic compounds. - Vol. 3, naphthacarbazole - zygadenine. - М.: ИИЛ, 1949. - pp. 1071-1072
  2. Mackay D., Shiu W.Y., Ma K.-C., Lee S.C. Handbook of Physical-Chemical Properties and Enviromental Fate for Organic Chemacals. - 2ed, Vol.1. - CRC Press, 2006. - pp. 542-544
  3. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 680
  4. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.1. - Л.: Химия, 1976. - pp. 113 [Russian]
  5. Соколов В.З., Харлампович Г.Д. Производство и использование ароматических углеводородов. - М.: Химия, 1980. - pp. 11 [Russian]
  6. Справочник нефтехимика. - Т.1, под ред. Огородникова С.К. - Л.: Химия, 1978. - pp. 442, 482-483 [Russian]
  7. Справочник химика. - 2 изд., Т.1. - Л.-М.: Химия, 1966. - pp. 656 [Russian]
  8. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 668-669 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru