Main page (Russian) Search in database (English)

Properties of substance:

silicotungstic acid

Group of substances:

inorganic

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

H18O47SiW12

Structural formula as text:

H4SiW12O40 * 7H2O

Molar/atomic mass: 3004.28

Decomposition temperature (°C):

370

Solubility (g/100 g of solvent):

acetone: very soluble [Ref.]
benzene: insoluble [Ref.]
diethyl ether: very soluble [Ref.]
ethanol: soluble [Ref.]
water: soluble [Ref.]

Dissociation:

pKa (1) = 2 (25°C, acetone)
pKa (1) = 5 (25°C, acetic acid)
pKa (2) = 3.6 (25°C, acetone)
pKa (3) = 5.3 (25°C, acetone)

References:

  1. Inorganic Syntheses. - Vol. 1. - New York and London, 1939. - pp. 129-132
  2. Никитина Е.А. Гетерополисоединения. - М.: ГНТИХЛ, 1962. - pp. 104-113 [Russian]
  3. Поп М.С. Гетерополи- и изополиоксометаллаты. - Новосибирск: Наука, 1990. - pp. 87 [Russian]
  4. Успехи химии. - 1987. - Т.56, №9. - pp. 1424 [Russian]
  5. Успехи химии. - 1995. - Т.64, №5. - pp. 483 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru