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Sodium sulfate (also known as sodium sulphate or sulfate of soda) is the inorganic compound with formula Na 2 SO 4 as well as several related hydrates.All forms are white solids that are highly soluble in water.
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Solid properties Std enthalpy change of formation, Δ f H o solid-1387.1 kJ/mol Standard molar entropy, S o solid: 149.6 J/(mol K) Heat capacity, c p: 128.2 J/(mol K) Entropy change of solution [1] 2.1 J/(mol K) Liquid properties Std enthalpy change of formation, Δ f H o liquid? kJ/mol Standard molar entropy, S o liquid? J/(mol K) Heat ...
The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure.
The solubility of a specific solute in a specific solvent is generally expressed as the concentration of a saturated solution of the two. [1] Any of the several ways of expressing concentration of solutions can be used, such as the mass, volume, or amount in moles of the solute for a specific mass, volume, or mole amount of the solvent or of the solution.
This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.
The main aqueous species are the aquo complexes [Na(H 2 O) n] +, where n = 4–8; with n = 6 indicated from X-ray diffraction data and computer simulations. [13] Direct precipitation of sodium salts from aqueous solutions is rare because sodium salts typically have a high affinity for water. An exception is sodium bismuthate (NaBiO 3). [14]
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