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Properties of substance:

heneicosane

Group of substances:

organic

Physical appearance:

crystals

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

C21H44

Structural formula as text:

CH3(CH2)19CH3

Molar/atomic mass: 296.574

Melting point (°C):

40.2

Boiling point (°C):

356

Solubility (g/100 g of solvent):

ethanol: sparingly soluble [Ref.]
petroleum ether: soluble [Ref.]
water: insoluble [Ref.]

Density:

0.7919 (20°C, g/cm3)
0.7778 (40.3°C, d4)
0.7589 (70°C, d4)

Refractive index (nD):

1.4441 (20°C)

Vapour pressure (Torr):

1 (160°C)
3 (179.8°C)
10 (207°C)
15 (215°C)
40 (244°C)
100 (272°C)
400 (326°C)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-288
  2. Петров А.Д. Синтез и изомерные превращения алифатических углеводородов. - М.-Л.: ИАН СССР, 1947. - pp. 10 [Russian]
  3. Справочник химика. - 2 изд., Т.1. - Л.-М.: Химия, 1966. - pp. 672 [Russian]
  4. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 596-597 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru