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Properties of substance:

2-phenylpropane

Synonyms:

isopropylbenzene
cumene

Group of substances:

organic

Physical appearance:

colorless liquid

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

C9H12

Structural formula as text:

C6H5CH(CH3)2

Molar/atomic mass: 120.192

Melting point (°C):

-96.028

Boiling point (°C):

152.392

CAS №: 98-82-8

Solubility (g/100 g of solvent):

acetone: miscible [Ref.]
benzene: soluble [Ref.]
carbon tetrachloride: miscible [Ref.]
diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
petroleum ether: miscible [Ref.]
water: 0.005 (25°C) [Ref.]
water: 0.01473 (75.04°C) [Ref.]

Density:

0.8702 (10°C, g/cm3)
0.8618 (20°C, g/cm3)
0.85751 (25°C, d4)
0.8575 (25°C, g/cm3)
0.8534 (30°C, g/cm3)
0.845 (40°C, g/cm3)

Reactions of synthesis:

  1. Yeild 80%. [Ref.1aster]
    C6H6 + (CH3)2CHOH → (CH3)2CHC6H5 + H2O
  2. [Ref.1, Ref.2]
    C6H6 + CH3CH=CH2 → C6H5CH(CH3)2

Refractive index (nD):

1.49145 (20°C)
1.4889 (25°C)

Vapour pressure (Torr):

0.01 (-44.4°C)
0.1 (-23.8°C)
0.144 (-20°C)
0.356 (-10°C)
0.807 (0°C)
1.7 (10°C)
3.34 (20°C)
6.22 (30°C)
10 (38.2°C)
11 (40°C)
18.62 (50°C)
30.31 (60°C)
47.63 (70°C)
72.54 (80°C)
107.4 (90°C)
155.02 (100°C)
218.65 (110°C)
301.98 (120°C)
409.19 (130°C)
544.86 (140°C)
714 (150°C)

Retention indices for gas chromatography:

923,6 (phase - DB-5, temperature-programmed conditions, 6 K/min)

Permittivity (dielectric constant):

2.38 (20°C)

Dipole moment (D):

0.85 (20°C)

Viscosity (mPa·s):

1.075 (0°C)
0.915 (10°C)
0.788 (20°C)
0.737 (25°C)
0.691 (30°C)
0.611 (40°C)

Surface tension (mN/m):

28.2 (20°C)
27.67 (25°C)
27.14 (30°C)
26.09 (40°C)
25.03 (50°C)
22.4 (75°C)
19.76 (100°C)

Speed sound (m/s):

1342 (20°C, aggregative state - liquid)

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

-41.3 (l)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

197 (l)

Flash point (°C):

38

LD50 (mg/kg):

2900 (rats, oral)

Critical temperature (°C):

359.8

Critical pressure (MPa):

3.21

References:

  1. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 585
  2. Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 597
  3. Воскресенский П.И., Каверина А.А., Парменов К.Я., Цветков Л.А., Эпштейн Д.А. Справочник по химии. - 4 изд. - М.: Просвещение, 1978. - pp. 200 [Russian]
  4. Вредные химические вещества: Углеводороды, галогенпроизводные углеводородов. Справочник. - Л.: Химия, 1990. - pp. 168-173 [Russian]
  5. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 156 [Russian]
  6. Соколов В.З., Харлампович Г.Д. Производство и использование ароматических углеводородов. - М.: Химия, 1980. - pp. 10-38 [Russian]
  7. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 508 [Russian]
  8. Физико-химические свойства индивидуальных углеводородов. - М.: ГНТИНГТЛ, 1960. - pp. 30-31, 64-65, 95, 142, 189, 236-238, 324, 336-337, 346, 375, 378, 395, 402, 408 [Russian]
  9. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 194 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru