Periodic table of elements

Barium sulfate [BaSO4]

SOLUBILITY:
water [H2O]: 0,00022 (18°), 0,000336 (50°), 0,00041 (100°)
formic acid [HCO2H] 95%: 0,0083 (18,5°)
sulfuric acid [H2SO4] 100%: 11 (20°)

PROPERTIES:
colourless rhombic crystals
M (molar mass): 233,400 g/mol
MP (melting point): 1580 °C
D (density): 4,5 (20°, g/cm3, s.)
ΔHmelt (molar enthalpy of melting): 41 kJ/mol
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -1465 (s) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -1353 (s) kJ/mol
298 (standard molar entropy at 298 К): 132 (s) J/(mol•К)
p (standard molar heat capacity): 101,8 (s) J/(mol•К)

LITERARY REFERENCES:
• Spravochnik po rastvorimosti. - T.1, Kn.1. - M.-L.: IAN SSSR, 1961. – P. 34
• Lewis R.J. Sax’s Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. – P. 345
• Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1 - New York: D. Van Nostrand Company, 1940. – P. 182-186
• Efimov A.I. i dr. Svoystva neorganicheskih soedineniy. Spravochnik. - L.: Himiya, 1983. – P. 102-103
• Nekrasov B.V. Osnovy obschey himii. - T.2. - M.: Himiya, 1973. – P. 176
• Rabinovich V.A., Havin Z.Ya. Kratkiy himicheskiy spravochnik. - L.: Himiya, 1977. – P. 55

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