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Properties of substance:

cyclohexane

Group of substances:

organic

Physical appearance:

colorless liquid

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

C6H12

Structural formula as text:

(CH2)6

Molar/atomic mass: 84.159

Melting point (°C):

6.5

Boiling point (°C):

81.4

CAS №: 110-82-7

Solubility (g/100 g of solvent):

diethyl ether: miscible [Ref.]
ethanol: miscible [Ref.]
furfural : 11.58 (17.2°C) [Ref.]
hydrogen fluoride : slightly soluble [Ref.]
methanol: 43 (15°C) [Ref.]
methanol: 48.6 (20°C) [Ref.]
methanol: 55.1 (25°C) [Ref.]
methanol: 64.5 (30°C) [Ref.]
methanol: 76.9 (35°C) [Ref.]
methanol: 95.6 (40°C) [Ref.]
methanol: miscible (45.75°C, critical solution temperature) [Ref.]
oxygen liquid: 0.00066 (-183°C) [Ref.]
propionitrile: 233 (12.2°C) [Ref.]
sulfolane: insoluble [Ref.]
water: 0.0055 (25°C) [Ref.]
water: 0.012 (50°C) [Ref.]

Density:

0.77855 (20°C, g/cm3)

Reactions of synthesis:

  1. Yeild 70-80%. [Ref.1, Ref.2aster, Ref.3]

Reactions:

  1. Yeild 45-50%. [Ref.1aster]
    C6H12 + 2PCl3 + O2 → C6H11P(O)Cl2 + POCl3 + HCl

Dissociation:

pKa (1) = 45 (20°C, water)

Retention indices for gas chromatography:

657,6 (phase - DB-5, temperature-programmed conditions, 6 K/min)

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

-156.2 (l)

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

204.3 (l)

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

156.5 (l)

LD50 (mg/kg):

4700 (white mice, oral)

References:

  1. Binneweis M., Milke E. Thermochemical Data of Elements and Compounds. - 2ed, 2002. - pp. 273
  2. Journal of Chemical and Engineering Data. - 1961. - Vol. 6, No. 3. - pp. 339
  3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 432-433
  4. Smallwood I.M. Handbook of organic solvent properties. - 1996. - pp. 31-33
  5. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 294-295
  6. Гордон А., Форд Р. Спутник химика. - М.: Мир, 1976. - pp. 77, 187, 466 [Russian]
  7. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1269, 1358 [Russian]
  8. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 1096-1097 [Russian]
  9. Шефтель В.О. Полимерные материалы: Токсические свойства. - Л.: Химия, 1982. - pp. 216-217 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru