1.06673

Natriumwolframat-Dihydrat

for analysis EMSURE^®

• Synonym(e): Natriumwolframat-Dihydrat
• Empirische Formel (Hill-System): Na₂O₄W · 2H₂O
• CAS-Nummer: 10213-10-2
• Molekulargewicht: 329.85
• MDL-Nummer: MFCD00149190
• UNSPSC-Code: 12352302
• EG-Index-Nummer: 236-743-4
• NACRES: NA.21

Eigenschaften

• Qualitätsniveau: 300
• Produktlinie: EMSURE^®
• Assay: ≥99% (thermogravimetric)
• Form: crystals
• Wirksamkeit: 1190 mg/kg LD₅₀, oral (Rat)
• pH-Wert: 8-9 (20 °C, 50 g/L in H₂O)
• mp (Schmelzpunkt): 100 °C (Elimination of water of crystallisation)
• Löslichkeit: 730 g/L
• Dichte: 3.23 g/cm³ at 20 °C
• Schüttdichte: 1600 kg/m³
• Anionenspuren: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.01%
• Kationenspuren: Fe: ≤0.0005%; Mo: ≤0.005%; N: ≤0.001%; Pb: ≤0.001%; excess alkali (as NaOH): ≤0.10%
• Lagertemp.: 15-25°C
• InChI: 1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
• InChIKey: WPZFLQRLSGVIAA-UHFFFAOYSA-N

Beschreibung

Anwendung

• Sodium Tungstate Dihydrate (Na2WO4.2H2O): A Mild Oxidizing and Efficient Reagent in Organic Synthesis: This study highlights the use of sodium tungstate dihydrate as a mild and efficient oxidizing agent in organic synthesis. Its applications in various oxidation reactions are discussed, showcasing its versatility and effectiveness in synthesizing complex organic molecules (Jordao et al., 2022).


• New Findings of Pseudocapacitive Behaviors in Cupric Tungstate Dihydrate: This research uncovers pseudocapacitive properties in cupric tungstate dihydrate, prepared using sodium tungstate dihydrate. The findings contribute to the development of advanced energy storage materials with high capacitance and stability (Gao et al., 2022).

Hinweis zur Analyse

Assay (thermogravimetrisch): ≥ 99 %
Identität (Röntgenbeugung): entspricht
Freie Alkali (als NaOH): ≤ 0,10 %
Chlorid (Cl): ≤ 0,003 %
Sulfat (SO₄): ≤ 0,01 %
Gesamtstickstoff (N): ≤ 0,001 %
Fe (Eisen): ≤ 0,0005 %
Mo (Molybdän): ≤ 0,005 %
Pb (Blei): ≤ 0,001 %

Rechtliche Hinweise

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H302
• P-Sätze: P264 - P270 - P301 + P312 - P501
• Gefahreneinstufungen: Acute Tox. 4 Oral
• Lagerklassenschlüssel: 13 - Non Combustible Solids
• WGK: WGK 2
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable