Periodic table of elements

Potassium carbonate [K2CO3]

SOLUBILITY:
acetone [(CH3)2CO]: ?.?.
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]: ?.?.

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

LITERARY REFERENCES:
• ??????? ?????????? ????????: ?????????????? ?????????? ????????? I-IV ?????. ??????????. - ?.: ?????, 1988. – P. 47
• ?????????? ??????. - ?.2. - ?.-?.: ?????, 1964. – P. 86-87
• ?????????? ??????. - ?.3. - ?.-?.: ?????, 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
• ???????? ?.?. ?????? ????? ?????. - ?.2. - ?.: ?????, 1973. – P. 239 241
• ????????? ?.?., ????? ?.?. ??????? ?????????? ??????????. - ?.: ?????, 1977. – P. 68

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