Periodic table of elements

Potassium hydroxide [KOH]

SOLUBILITY:
water [H2O]: 97,6 (0°), 102,4 (10°), 112,4 (20°), 117,9 (25°), 135,3 (40°), 147,5 (60°), 162,5 (80°), 179,3 (100°), 206 (120°), 367 (140°)
diethyl ether [C2H5OC2H5]: insoluble
methanol [CH3OH]: 55 (28°)
ethanol [C2H5OH]: 38,7 (28°)

PROPERTIES:
colourless monoclinic crystals
M (molar mass): 56,110 g/mol
MP (melting point): 380 °C
BP (boiling point): 1320 °C
D (density): 2,12 (25°, g/cm3, s.)
ΔHmelt (molar enthalpy of melting): 7,5 kJ/mol
ΔHboil (molar enthalpy of boiling): 128,9 kJ/mol
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -226 (g) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -380,2 (s) kJ/mol
298 (standard molar entropy at 298 К): 238 (g) J/(mol•К)
p (standard molar heat capacity): 49 (g) J/(mol•К)
LD50 (median lethal doses for laboratory animals): 365 (rats, i/g) mg/kg

LITERARY REFERENCES:
• Vrednye himicheskie veschestva: Neorganicheskie soedineniya elementov I-IV grupp. Spravochnik. - L.: Himiya, 1988. – P. 47
• Spravochnik himika. - T.3. - M.-L.: Himiya, 1965. – P. 295 299
• Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1 - New York: D. Van Nostrand Company, 1940. – P. 851-852
• Efimov A.I. i dr. Svoystva neorganicheskih soedineniy. Spravochnik. - L.: Himiya, 1983. – P. 128-129
• Nekrasov B.V. Osnovy obschey himii. - T.2. - M.: Himiya, 1973. – P. 229
• Rabinovich V.A., Havin Z.Ya. Kratkiy himicheskiy spravochnik. - L.: Himiya, 1977. – P. 68

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