Main page (Russian) Search in database (English)
Sitemap (Russian)

Properties of substance:

arsenic(V) oxide

Synonyms:

arsenic pentoxide

Physical appearance:

white amorphous substance

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

As2O5

Structural formula as text:

As2O5

CAS No: 1303-28-2

Molar/atomic mass: 229.84

Melting point (°C):

315

Destruction point (°C):

315

Solubility (g/100 g of solvent):

water: 59.5 (0°C) [Ref.]
water: 62.1 (10°C) [Ref.]
water: 65.8 (20°C) [Ref.]
water: 70.6 (29.5°C) [Ref.]
water: 71.2 (40°C) [Ref.]
water: 73 (60°C) [Ref.]
water: 75.1 (80°C) [Ref.]
water: 76.4 (100°C) [Ref.]
water: 77.6 (120°C) [Ref.]
water: 80.2 (140°C) [Ref.]
sulfuric acid: insoluble [Ref.]
ethanol: soluble [Ref.]

Density:

4.09 (20°C, g/cm3)

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

    -924.9 (s)

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

    -782.4 (s)

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

    105.4 (s)

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

    116.5 (s)

    LD50 (mg/kg):

    8 (rats, oral)

    References:

    1. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.18
    2. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 302-303
    3. Patnaik P. Handbook of inorganic chemicals. - McGraw-Hill, 2003. - pp. 65-66
    4. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 111
    5. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 472
    6. Немодрук А.А. Аналитическая химия мышьяка. - М.: Наука, 1976. - pp. 15-16
    7. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 82
    8. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 333, 928
      What information do you need?



      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru