Periodic table of elements

Potassium sulfide [K2S]

SOLUBILITY:
water [H2O]: reacts
glycerol [HOCH2CH(OH)CH2OH]: soluble
diethyl ether [C2H5OC2H5]: insoluble
ethanol [C2H5OH]: soluble

PROPERTIES:
colourless cubic crystals
M (molar mass): 110,260 g/mol
MP (melting point): 471 °C
D (density): 1,8 (20°, g/cm3, s.)
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -428,4 (s) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -404,2 (s) kJ/mol
298 (standard molar entropy at 298 К): 111,3 (s) J/(mol•К)

LITERARY REFERENCES:
• Rabinovich V.A., Havin Z.Ya. Kratkiy himicheskiy spravochnik. - L.: Himiya, 1977. – P. 69

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