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Thermo Scientific Chemicals
Sodium sulfate, anhydrous, 99%
CAS: 7757-82-6 | Na2O4S | 142.04 g/mol
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化學識別
CAS7757-82-6
IUPAC Namedisodium sulfate
Molecular FormulaNa2O4S
InChI KeyPMZURENOXWZQFD-UHFFFAOYSA-L
SMILES[Na+].[Na+].[O-]S([O-])(=O)=O
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規格
規格表
規格表FormCrystals or powder or crystalline powder
Assay from Supplier's CofA≥98.5%
Appearance (Color)White
Water Content (Karl Fischer Titration)≤0.5%
Sodium sulfate anhydrous is used primarily for drying non-aqueous solvents by removing traces of water. It is used as a fining agent for molten glass, levelling agent in textile processing, and filler in detergents. It is also used in Kraft process for paper pulping, defrosting windows, manufacture of starch, glass, and soap.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
Sodium sulfate anhydrous is used primarily for drying non-aqueous solvents by removing traces of water. It is used as a fining agent for molten glass, levelling agent in textile processing, and filler in detergents. It is also used in Kraft process for paper pulping, defrosting windows, manufacture of starch, glass, and soap.
Solubility
Soluble in water, glycerol and hydrogen iodide. Insoluble in ethanol and many organic solvents.
Notes
Anhydrous sodium sulfate is hygroscopic in nature, and absorbs moisture converting to the hydrated form. The hydrated form on heating gets converted back to anhydrous form.
Sodium sulfate anhydrous is used primarily for drying non-aqueous solvents by removing traces of water. It is used as a fining agent for molten glass, levelling agent in textile processing, and filler in detergents. It is also used in Kraft process for paper pulping, defrosting windows, manufacture of starch, glass, and soap.
Solubility
Soluble in water, glycerol and hydrogen iodide. Insoluble in ethanol and many organic solvents.
Notes
Anhydrous sodium sulfate is hygroscopic in nature, and absorbs moisture converting to the hydrated form. The hydrated form on heating gets converted back to anhydrous form.
RUO – Research Use Only
General References:
- Baščarević, Z.; Komljenović, M.; Miladinović, Z.; Nikolić, V.; Marjanović, N.; Petrović, R. Impact of sodium sulfate solution on mechanical properties and structure of fly ash based geopolymers. Mater. Struct. 2015, 48 (3), 683-697.
- Tsuia, N.; Flattb, R. J.; Schererb, G. W. Crystallization Damage by Sodium Sulfate. J. Cult. Herit. 2003, 4 (2), 109-115.
- Karami, H.; Yaghoobi, A.; Ramazani, A. Sodium Sulfate Effects on the Electrochemical Behaviors of Nanostructured Lead Dioxide and Commercial Positive Plates of Lead-Acid Batteries. Int. J. Electrochem. Sci. 2010, 5, 1046-1059.