1.06673

Sodium tungstate dihydrate

for analysis EMSURE^®

• Sinonimo/i: Sodium tungstate dihydrate
• Formula empirica (notazione di Hill): Na₂O₄W · 2H₂O
• Numero CAS: 10213-10-2
• Peso molecolare: 329.85
• Numero MDL: MFCD00149190
• Codice UNSPSC: 12352302
• Numero indice EU: 236-743-4
• NACRES: NA.21

Proprietà

• Livello qualitativo: 300
• Nome Commerciale: EMSURE^®
• Saggio: ≥99% (thermogravimetric)
• Forma fisica: crystals
• Potenza: 1190 mg/kg LD₅₀, oral (Rat)
• pH: 8-9 (20 °C, 50 g/L in H₂O)
• Punto di fusione: 100 °C (Elimination of water of crystallisation)
• Solubilità: 730 g/L
• Densità: 3.23 g/cm³ at 20 °C
• Densità bulk: 1600 kg/m³
• Anioni in tracce: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.01%
• Cationi in tracce: Fe: ≤0.0005%; Mo: ≤0.005%; N: ≤0.001%; Pb: ≤0.001%; excess alkali (as NaOH): ≤0.10%
• Temperatura di conservazione: 15-25°C
• InChI: 1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;; WPZFLQRLSGVIAA-UHFFFAOYSA-N

Descrizione

Applicazioni

• 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).

Risultati analitici

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 %

Note legali

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

Informazioni sulla sicurezza

• Pittogrammi: GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H302
• Consigli di prudenza: P264 - P270 - P301 + P312 - P501
• Classi di pericolo: Acute Tox. 4 Oral
• Codice della classe di stoccaggio: 13 - Non Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable