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Properties of substance:

barium chromate

Group of substances:

inorganic

Physical appearance:

yellow orthorhombic crystals

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

BaCrO4

Structural formula as text:

BaCrO4

Molar/atomic mass: 253.321

Melting point (°C):

1380

CAS №: 10294-40-3

Solubility (g/100 g of solvent):

water: 0.0002 (0°C) [Ref.]
water: 0.00028 (10°C) [Ref.]
water: 0.00037 (20°C) [Ref.]
water: 0.00046 (30°C) [Ref.]

Density:

4.5 (25°C, g/cm3)

Reactions:

  1. [Ref.1aster]
    BaCrO4 + 2HNO3 → CrO3 + Ba(NO3)2 + H2O

Dissociation:

pKsp (0) = 9.62 (25°C, water)

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

-1429 (s)

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

172 (s)

References:

  1. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 341
  2. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 164
  3. Волков А.И., Жарский И.М. Большой химический справочник. - Минск: Современная школа, 2005. - pp. 119 [Russian]
  4. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 34, 287 [Russian]
  5. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 320 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru