Periodic table of elements

Hydrogen iodide [HI]

SOLUBILITY:
water [H2O]: 234 (10°), 132,5 (127°)
fluorine hydride [HF]: insoluble
ethanol [C2H5OH]: soluble

PROPERTIES:
colourless gas
M (molar mass): 127,910 g/mol
MP (melting point): -50,8 °C
BP (boiling point): -35,36 °C
D (density): 2,86 (-50,8°, g/сm3, l.), 0,005789 (0°,
ΔHmelt (molar enthalpy of melting): 2,87 kJ/mol
ΔHboil (molar enthalpy of boiling): 19,76 kJ/mol
ΔH°298 (Standard molar enthalpy of reaction at 298 К): 26,57 (g) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): 1,78 (g) kJ/mol
298 (standard molar entropy at 298 К): 206,48 (g) J/(mol•К)
p (standard molar heat capacity): 29,15 (g) J/(mol•К)
Dip (dipole moment): 0,42 (20°) debye
P (vapor pressure): 1 (-123,1°), 5 (-109,6°), 10 (-102,3°), 20 (-94,5°), 100 (-72,4°), 200 (-60,3°), 400 (-48,3°) Mmhg or Torr
pKa1 (acid dissociation constant): -11 (25°, water)
ε (permittivity): 1,00212 (22°)
Тcrit. (critical temperature): 150,7°C
Рcrit. (critical pressure): 8,31 mPa

LITERARY REFERENCES:
• Himicheskaya enciklopediya. - T.2. - M.: Sovetskaya enciklopediya, 1990. – P. 253
• Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1 - New York: D. Van Nostrand Company, 1940. – P. 580-581
• Rabinovich V.A., Havin Z.Ya. Kratkiy himicheskiy spravochnik. - L.: Himiya, 1977. – P. 65
• Rapoport F.M., Il'inskaya A.A. Laboratornye metody polucheniya chistyh gazov. - M., 1963. – P. 145-150

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