31481-M

Natriumsulfat

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., anhydrous, ≥99.0%

• 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: 329753782
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent; puriss. p.a.
• Agentur: USP/NF; reag. ISO; reag. Ph. Eur.
• Dampfdruck: <0.1 hPa ( 20 °C)
• Assay: ≥99.0%
• Form: crystalline
• Verunreinigungen: ≤0.0005% heavy metals (by ICP-OES); ≤0.01% in water insoluble matters; ≤0.03% free alkali (as NaOH); ≤0.05% free acid (as H₂SO₄); ≤5 ppm total nitrogen (N)
• Verlust: ≤0.5% loss on ignition, 800 °C
• pH-Wert: 5.2-8.0 (20 °C, 5%)
• mp (Schmelzpunkt): 884 °C (lit.)
• Dichte: 2.68 g/mL at 25 °C (lit.)
• Anionenspuren: chloride (Cl^-): ≤10 ppm; phosphate (PO₄^3-): ≤0.001%
• Kationenspuren: As: ≤0.0001%; Ca: ≤20 ppm; Fe: ≤5 ppm; K: ≤0.01%; Mg: ≤25 ppm
• Eignung: complies for appearance of solution
• 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

NaSO₄ can also be used as a drying agent in organic synthesis for the removal of traces of water from organic extracts.

Sicherheitshinweise

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