Periodic table of elements

Mercury(II) sulfide [HgS]

SOLUBILITY:
water [H2O]: 0,00000125 (18°)
ethanol [C2H5OH]: insoluble

PROPERTIES:
red trigonal crystals
M (molar mass): 232,650 g/mol
MP (melting point): 825 °C
D (density): 8,1 (20°, g/cm3, s.)
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -59 (s) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -51,4 (s) kJ/mol
298 (standard molar entropy at 298 К): 82,4 (s) J/(mol•К)
p (standard molar heat capacity): 48,41 (s) J/(mol•К)
P (vapor pressure): 1 (333°), 10 (395°), 100 (484°) Mmhg or Torr

LITERARY REFERENCES:
• Himicheskiy enciklopedicheskiy slovar'. - pod red. Knunyanc I.L. - M.: Sovetstkaya enciklopediya, 1983. – P. 512
• Enciklopediya dlya detey. - T.17: Himiya. - M.: Avanta+, 2004. – P. 235
• Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1 - New York: D. Van Nostrand Company, 1940. – P. 652
• Ivanova M.A., Kononova M.A. Himicheskiy demonstracionnyy eksperiment. - M.: Vysshaya shkola, 1969. – P. 36
• Nekrasov B.V. Osnovy obschey himii. - T.2. - M.: Himiya, 1973. – P. 204
• Rabinovich V.A., Havin Z.Ya. Kratkiy himicheskiy spravochnik. - L.: Himiya, 1977. – P. 93

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