1.06673

Sodium tungstate dihydrate

for analysis EMSURE^®

• Sinônimo(s): Sodium tungstate dihydrate
• Fórmula empírica (Notação de Hill): Na₂O₄W · 2H₂O
• Número CAS: 10213-10-2
• Peso molecular: 329.85
• Número MDL: MFCD00149190
• Código UNSPSC: 12352302
• Número do índice EC: 236-743-4
• NACRES: NA.21

Propriedades

• Nível de qualidade: 300
• linha de produto: EMSURE^®
• Ensaio: ≥99% (thermogravimetric)
• forma: crystals
• potência: 1190 mg/kg LD₅₀, oral (Rat)
• pH: 8-9 (20 °C, 50 g/L in H₂O)
• pf: 100 °C (Elimination of water of crystallisation)
• solubilidade: 730 g/L
• densidade: 3.23 g/cm³ at 20 °C
• densidade volumétrica: 1600 kg/m³
• traços de ânion: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.01%
• traços de cátion: Fe: ≤0.0005%; Mo: ≤0.005%; N: ≤0.001%; Pb: ≤0.001%; excess alkali (as NaOH): ≤0.10%
• temperatura de armazenamento: 15-25°C
• InChI: 1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
• chave InChI: WPZFLQRLSGVIAA-UHFFFAOYSA-N

Descrição

Aplicação

• 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).

Nota de análise

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 %

Informações legais

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

Informações de segurança

• Pictogramas: GHS07
• Palavra indicadora: Warning
• Frases de perigo: H302
• Declarações de precaução: P264 - P270 - P301 + P312 - P501
• Classificações de perigo: Acute Tox. 4 Oral
• Código de classe de armazenamento: 13 - Non Combustible Solids
• Classe de risco de água (WGK): WGK 2
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable