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Properties of substance:

barium tungstate

Group of substances:

inorganic

Physical appearance:

colorless tetragonal crystals

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

BaO4W

Structural formula as text:

BaWO4

Molar/atomic mass: 385.17

Melting point (°C):

1475

Boiling point (°C):

1730

Solubility (g/100 g of solvent):

lithium chloride fused: 150 (600°C) [Ref.]
water: 0.00153 (0°C) [Ref.]
water: 0.00134 (10°C) [Ref.]
water: 0.00154 (20°C) [Ref.]
water: 0.00199 (40°C) [Ref.]
water: 0.00239 (60°C) [Ref.]
water: 0.003 (90°C) [Ref.]

Density:

5.04 (20°C, g/cm3)

Reactions of synthesis:

  1. [Ref.1aster]
    BaCO3 + WO3 → BaWO4 + CO2

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

-1697 (s)

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

146 (s)

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 100-101 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru