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Properties of substance:

sodium tetrafluoroborate

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

Empirical formula (Hill's system for organic substances):

BF4Na

Structural formula as text:

NaBF4

Molar/atomic mass: 109.794

Melting point (°C):

406

Decomposition temperature (°C):

384

Solubility (g/100 g of solvent):

acetone: 1 (20°C) [Ref.]
diethyl ether: insoluble [Ref.]
ethanol: 0.28 (0°C) [Ref.]
ethanol: 0.47 (25°C) [Ref.]
ethanol: 0.64 (40°C) [Ref.]
ethanol: 1.01 (60°C) [Ref.]
methanol: 2.93 (0°C) [Ref.]
methanol: 4.35 (25°C) [Ref.]
methanol: 5.43 (40°C) [Ref.]
water: 72.27 (0°C) [Ref.]
water: 85.19 (11°C) [Ref.]
water: 108 (26°C) [Ref.]
water: 210 (100°C) [Ref.]

Density:

2.47 (20°C, g/cm3)

    Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

    -1845 (s)

    Standard molar entropy S0 (298.15 K, J/(mol·K)):

    145.3 (s)

    Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

    120.2 (s)

    Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

    13.6

    LD50 (mg/kg):

    550 (rats, subcutaneous)

    References:

    1. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 12ed., Vol. 1-5. - Wiley, 2012. - pp. 4047
    2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 168-169 [Russian]
    3. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 671 [Russian]
    4. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 204 [Russian]
    5. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советсткая энциклопедия, 1983. - pp. 365 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru