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Properties of substance:

sodium aluminum sulfate dodecahydrate

Synonyms:

sodium aluminium sulfate dodecahydrate

Group of substances:

inorganic

Physical appearance:

colorless cubic crystals

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

H24AlNaO20S2

Structural formula as text:

NaAl(SO4)2 * 12H2O

Molar/atomic mass: 458.28

Melting point (°C):

61

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: 106 (0°C) [Ref.]
water: 121 (45°C) [Ref.]

Density:

1.675 (20°C, d4)

Refractive index (nD):

1.4388 (20°C)

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

-5983 (s)

References:

  1. Краткий справочник по химии. - Под ред. Куриленко О.Д. - Киев: Наукова думка, 1974. - pp. 268-269 [Russian]
  2. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 366 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru