239313

Sodium sulfate

ACS reagent, ≥99.0%, anhydrous, granular

• Linear Formula: Na₂SO₄
• CAS Number: 7757-82-6
• Molecular Weight: 142.04
• EC Number: 231-820-9
• MDL number: MFCD00003504
• UNSPSC Code: 12352302
• PubChem Substance ID: 329752527
• NACRES: NA.21

Properties

• grade: ACS reagent; anhydrous
• assay: ≥99.0%
• form: granular
• impurities: ≤0.01% insolubles; ≤5 ppm N compounds
• loss: ≤0.5% loss on ignition
• pH: 5.2-9.2 (25 °C, 5%)
• mp: 884 °C (lit.)
• density: 2.68 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤0.001%
• cation traces: Ca: ≤0.01%; Fe: ≤0.001%; K: ≤0.01%; Mg: ≤0.005%; heavy metals: ≤5 ppm (by ICP-OES)
• storage temp.: room temp
• SMILES string: [Na+].[Na+].[O-]S([O-])(=O)=O
• InChI: 1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
• InChI key: PMZURENOXWZQFD-UHFFFAOYSA-L

Description

Application

Sodium sulfate (anhydrous) can be used as a catalyst in the synthesis of 1,3-diaryl-2-propen-1-one oxime by condensation of 1,3-diaryl-2-propen-1-one with hydroxylamine hydrochloride in ethanol.
NaSO₄ can also be used as a drying agent in organic synthesis for the removal of traces of water from organic extracts. It is used for drying almost all compounds including fatty acids, aldehydes, ketones, and alkyl and aryl halogenides.

Packaging

Go to Redi-Dri Product Listing 798592

Other Notes

Go to Redi-Dri^™ Product Listing 798592

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable