Periodic table of elements

Potassium carbonate [K2CO3]

SOLUBILITY:
acetone [(CH3)2CO]: insoluble
water [H2O]: 107 (0°), 109,2 (10°), 111 (20°), 112,3 (25°), 113,7 (30°), 116,9 (40°), 125,7 (60°), 139,2 (80°), 155,8 (100°), 274 (200°)
glycerol [HOCH2CH(OH)CH2OH]: 39,4 (20°)
ethanol [C2H5OH]: insoluble

PROPERTIES:
colourless monoclinic crystals
M (molar mass): 138,210 g/mol
MP (melting point): 891 °C
D (density): 2,43 (19°, g/cm3, s.)
η (dynamic viscosity): 3,03 (917°), 1,66 (977°) mPa∙s
ΔHmelt (molar enthalpy of melting): 32,6 kJ/mol
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -1146,1 (s) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -1059,8 (s) kJ/mol
298 (standard molar entropy at 298 К): 156,32 (s) J/(mol•К)
p (standard molar heat capacity): 115,7 (s) J/(mol•К)
Surf. tens. (surface tension): 168,4 (910°), 162,1 (1010°) mN/m
LD50 (median lethal doses for laboratory animals): 1870 (rats, i/g) mg/kg
CAS № (Chemical Abstracts number): 584-08-7

LITERARY REFERENCES:
• Vrednye himicheskie veschestva: Neorganicheskie soedineniya elementov I-IV grupp. Spravochnik. - L.: Himiya, 1988. – P. 47
• Spravochnik himika. - T.2. - L.-M.: Himiya, 1964. – P. 86-87
• Spravochnik himika. - T.3. - M.-L.: Himiya, 1965. – P. 299 301
• Armarego W. L. F. Purifi cation of Laboratory Chemicals. - 5ed. - 2003. – P. 453
• Schlager N., Weisblatt J., Newton D.E. Chemical Compounds. - 2006. – P. 633-637
• Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1 - New York: D. Van Nostrand Company, 1940. – P. 726-740
• Nekrasov B.V. Osnovy obschey himii. - T.2. - M.: Himiya, 1973. – P. 239 241
• Rabinovich V.A., Havin Z.Ya. Kratkiy himicheskiy spravochnik. - L.: Himiya, 1977. – P. 68

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