238597

Natriumsulfat

ACS reagent, ≥99.0%, anhydrous, powder

• Lineare Formel: Na₂SO₄
• CAS-Nummer: 7757-82-6
• Molekulargewicht: 142.04
• EG-Nummer: 231-820-9
• MDL-Nummer: MFCD00003504
• UNSPSC-Code: 12352302
• PubChem Substanz-ID: 329752510
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent; anhydrous
• Qualitätsniveau: 200
• Assay: ≥99.0%
• Form: powder
• Verunreinigungen: ≤0.01% insolubles; ≤5 ppm N compounds
• Verlust: ≤0.5% loss on ignition
• pH-Wert: 5.2-9.2 (25 °C, 5% in water); 5.2-9.2
• mp (Schmelzpunkt): 884 °C (lit.)
• Dichte: 2.68 g/mL at 25 °C (lit.)
• Anionenspuren: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤0.001%
• Kationenspuren: Ca: ≤0.002%; Fe: ≤0.001%; K: ≤0.002%; Mg: ≤0.001%; heavy metals: ≤5 ppm (by ICP-OES)
• 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
• InChIKey: PMZURENOXWZQFD-UHFFFAOYSA-L

Beschreibung

Anwendung

Sodium sulfate can be used as a catalyst:

• In the Suzuki-Miyaura cross-coupling reactions of aryl halides with arylboronic acids to synthesize biaryl compounds in the presence of PdCl₂.
• For the aminolytic depolymerization of PET (polyethylene terephthalate) bottle waste.

It can also be used as an additive in the Pd-catalyzed Sonogashira reaction of terminal alkynes with aryl halides to synthesize polyfunctional alkynes.

Sonstige Hinweise

Go to Redi-Dri^™ Product Listing 746363

Rechtliche Hinweise

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

Sicherheitshinweise

• Lagerklassenschlüssel: 13 - Non Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable