1.06672

Sodium tungstate dihydrate

EMPLURA^®

• 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: 200
• Nome Commerciale: EMPLURA^®
• Saggio: ≥98% (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^-): ≤0.01%; sulfate (SO₄^2-): ≤0.02%
• Cationi in tracce: Fe: ≤0.002%; N: ≤0.005%; excess alkali (as NaOH): ≤0.1%
• Temperatura di conservazione: 15-25°C
• InChI: 1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;; WPZFLQRLSGVIAA-UHFFFAOYSA-N

Descrizione

Applicazioni

• Synthesis and characterization of Anderson-Evans type polyoxometalates, antibacterial properties.: This research focuses on the synthesis and characterization of Anderson-Evans type polyoxometalates, evaluating their antibacterial properties. Sodium tungstate dihydrate is used in the synthesis process to form these polyoxometalates. (Avci Özbek, 2023).


• Nitric oxide modulates folate-mediated one-carbon metabolism and mitochondrial energy levels of peaches during cold storage.: This study explores the role of nitric oxide in modulating folate-mediated one-carbon metabolism and mitochondrial energy levels in peaches during cold storage. Sodium tungstate dihydrate is used as an analytical reagent in the experiments. (Yang et al., 2023).


• Facile Bottom-up Preparation of WS(2)-Based Water-Soluble Quantum Dots as Luminescent Probes for Hydrogen Peroxide and Glucose.: Details a novel method for preparing WS(2)-based water-soluble quantum dots used as luminescent probes for detecting hydrogen peroxide and glucose. Sodium tungstate dihydrate is used in the preparation of these quantum dots. (Hang et al., 2019).

Risultati analitici

Assay (thermogravimetric): ≥ 98 %
Identity (x-ray diffraction): passes test
Free alkali (as NaOH): ≤ 0.1 %
Chloride (Cl): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.02 %
Total nitrogen (N): ≤ 0.005 %
Fe (Iron): ≤ 0.002 %

Note legali

EMPLURA 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