Periodic table of elements

Sodium metasilicate [Na2SiO3]

SOLUBILITY:
water [H2O]: 18,8 (20°), 22,2 (25°), 34,5 (35°), 56,7 (45°), 93,5 (60°), 160,6 (80°)
ethanol [C2H5OH]: insoluble

PROPERTIES:
colourless rhombic crystals
M (molar mass): 122,060 g/mol
MP (melting point): 1089 °C
D (density): 2,61 (20°, g/cm3, s.)
ΔHmelt (molar enthalpy of melting): 52,3 kJ/mol
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -1528 kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -1427 (s) kJ/mol
298 (standard molar entropy at 298 К): 113,8 (s) J/(mol•К)
p (standard molar heat capacity): 111,8 (s) J/(mol•К)

LITERARY REFERENCES:
• Nekrasov B.V. Osnovy obschey himii. - T.1. - M.: Himiya, 1973. – P. 592
• Rabinovich V.A., Havin Z.Ya. Kratkiy himicheskiy spravochnik. - L.: Himiya, 1977. – P. 85

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