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Properties of substance:

1,1-difluoroethene

Group of substances:

organic

Physical appearance:

colorless gas

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

C2H2F2

Structural formula as text:

H2C=CF2

Molar/atomic mass: 64.03

Melting point (°C):

-144

Boiling point (°C):

-85.7

Solubility (g/100 g of solvent):

chloroform: soluble [Ref.]
ethanol: soluble [Ref.]
water: 0.025 (20°C) [Ref.]

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

-335 (g)

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

266.2 (g)

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

60.1 (g)

Autoignition temperature (°C):

480

Critical temperature (°C):

29.69

Critical pressure (MPa):

4.32

Critical density (g/cm3):

0.417

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-21
  2. Промышленные фторорганические продукты: Справочник. - Л.: Химия, 1990. - pp. 286-291 [Russian]
  3. Свойства органических соединений: Справочник. - Под ред. Потехина А.А. - Л.: Химия, 1984. - pp. 444-445 [Russian]
  4. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 369-370 [Russian]
  5. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 205 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru