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Properties of substance:

silicomolybdic acid

Group of substances:

inorganic

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

H16Mo12O46Si

Structural formula as text:

H4SiMo12O40 * 6H2O

Molar/atomic mass: 1931.47

Decomposition temperature (°C):

200-370

Solubility (g/100 g of solvent):

ethyl acetate: very soluble [Ref.]
water: very soluble [Ref.]

Dissociation:

pKa (1) = 2.1 (25°C, acetone)
pKa (1) = 4.8 (25°C, acetic acid)
pKa (2) = 3.9 (25°C, acetone)
pKa (3) = 5.9 (25°C, acetone)

References:

  1. Inorganic Syntheses. - Vol. 1. - New York and London, 1939. - pp. 127-129
  2. Никитина Е.А. Гетерополисоединения. - М.: ГНТИХЛ, 1962. - pp. 129-139 [Russian]
  3. Поп М.С. Гетерополи- и изополиоксометаллаты. - Новосибирск: Наука, 1990. - pp. 91 [Russian]
  4. Успехи химии. - 1987. - Т.56, №9. - pp. 1420 [Russian]
  5. Успехи химии. - 1995. - Т.64, №5. - pp. 483 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru