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Properties of substance:

sodium carbonate decahydrate

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

CH20Na2O13

Structural formula as text:

Na2CO3 * 10H2O

Molar/atomic mass: 286.14

Melting point (°C):

32.5

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: 50 (20°C) [Ref.]

Density:

1.446 (17°C, g/cm3)

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-4080 (s) [Ref.]

Standard molar Gibbs energy of formation ΔfG (298 K, kJ/mol)

-3424 (s) [Ref.]

Standard molar entropy S (298 K, J/(mol·K))

564 (s) [Ref.]

Molar heat capacity at constant pressure Cp (298 K, J/(mol·K))

550 (s) [Ref.]

Enthalpy (heat) of solution ΔsolH (kJ)

66.58 (s) [solvent: water, 18°C, 1 mol in 200 mol of water] [Ref.]

References:

  1. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 84 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru