1.06673

Sodium tungstate dihydrate

for analysis EMSURE^®

• Synonyma: Sodium tungstate dihydrate
• Empirický vzorec (Hillův zápis): Na₂O₄W · 2H₂O
• Číslo CAS: 10213-10-2
• Molekulová hmotnost: 329.85
• MDL number: MFCD00149190
• UNSPSC Code: 12352302
• EC Index Number: 236-743-4
• NACRES: NA.21
• assay: ≥99% (thermogravimetric)
• form: crystals
• solubility: 730 g/L

Vlastnosti

• Quality Level: 300
• product line: EMSURE^®
• assay: ≥99% (thermogravimetric)
• form: crystals
• potency: 1190 mg/kg LD₅₀, oral (Rat)
• pH: 8-9 (20 °C, 50 g/L in H₂O)
• mp: 100 °C (Elimination of water of crystallisation)
• solubility: 730 g/L
• density: 3.23 g/cm³ at 20 °C
• bulk density: 1600 kg/m³
• anion traces: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.01%
• cation traces: Fe: ≤0.0005%; Mo: ≤0.005%; N: ≤0.001%; Pb: ≤0.001%; excess alkali (as NaOH): ≤0.10%
• storage temp.: 15-25°C
• SMILES string: [W](=O)(=O)([O-])[O-].[Na+].[Na+].O.O
• InChI: 1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
• InChI key: WPZFLQRLSGVIAA-UHFFFAOYSA-N

Popis

Application

• 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).

Analysis Note

Assay (thermogravimetric): ≥ 99 %
Identity (x-ray diffraction): passes test
Free alkali (as NaOH): ≤ 0.10 %
Chloride (Cl): ≤ 0.003 %
Sulfate (SO₄): ≤ 0.01 %
Total nitrogen (N): ≤ 0.001 %
Fe (Iron): ≤ 0.0005 %
Mo (Molybdenum): ≤ 0.005 %
Pb (Lead): ≤ 0.001 %

Legal Information

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

Bezpečnostní informace

• pictograms: GHS07
• signalword: Warning
• hcodes: H302
• pcodes: P264 - P270 - P301 + P312 - P501
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable