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Properties of substance:

vanadium(V) oxide

Group of substances:

inorganic

Physical appearance:

rhombic crystals

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

O5V2

Structural formula as text:

V2O5

Molar/atomic mass: 181.88

Melting point (°C):

680

Decomposition temperature (°C):

700

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
hydrogen fluoride : reaction [Ref.]
water: 0.07 (25°C) [Ref.]
water: 0.07 (100°C) [Ref.]

Density:

3.36 (18°C, g/cm3)

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

-1552 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-1421.2 (s)

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

131 (s)

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

127.7 (s)

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

65.1

LD50 (mg/kg):

1-2 (rabbits, intravenous)
85.7-117 (mice, subcutaneous)

References:

  1. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 483 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 58 [Russian]
  3. Редкие и рассеянные элементы. Химия и технология. - Кн. 2. - М.: Мисис, 1998. - pp. 207-209 [Russian]
  4. Реми Г. Курс неорганической химии. - Т.2. - М., 1966. - pp. 116-118 [Russian]
  5. Рипан Р., Четяну И. Неорганическая химия. - Т.2. - М.: Мир, 1972. - pp. 167-170 [Russian]
  6. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 351-352 [Russian]
  7. Энциклопедия для детей. - Т.17: Химия. - М.: Аванта+, 2004. - pp. 258 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru