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Properties of substance:

orthotelluric acid

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

H6O6Te

Structural formula as text:

H6TeO6

Molar/atomic mass: 229.64

Decomposition temperature (°C):

160

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: 19.7 (0°C) [Ref.]
water: 258.5 (100°C) [Ref.]

Density:

3.07 (20°C, g/cm3)

Electrode potential:

H6TeO6 + 2H+ + 2e- → TeO2 + 4H2O, E = 1.02 V (water, 25°C)

Dissociation:

pKa (1) = 8.8 (25°C, water)

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

-1287.4 (s)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1526
  2. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 84 [Russian]
  3. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 362 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 104 [Russian]
  5. Реми Г. Курс неорганической химии. - Т.1. - М., 1963. - pp. 804-805 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru