1.06672

Sodium tungstate dihydrate

EMPLURA^®

• Synonim(y): Sodium tungstate dihydrate
• Wzór empiryczny (zapis Hilla): Na₂O₄W · 2H₂O
• Numer CAS: 10213-10-2
• Masa cząsteczkowa: 329.85
• Numer MDL: MFCD00149190
• Kod UNSPSC: 12352302
• Numer indeksu EC: 236-743-4
• NACRES: NA.21

Właściwości

• Poziom jakości: 200
• linia produktu: EMPLURA^®
• Próba: ≥98% (thermogravimetric)
• Postać: crystals
• siła działania: 1190 mg/kg LD₅₀, oral (Rat)
• pH: 8-9 (20 °C, 50 g/L in H₂O)
• mp: 100 °C (Elimination of water of crystallisation)
• rozpuszczalność: 730 g/L
• gęstość: 3.23 g/cm³ at 20 °C
• gęstość nasypowa: 1600 kg/m³
• ślady anionów: chloride (Cl^-): ≤0.01%; sulfate (SO₄^2-): ≤0.02%
• ślady kationów: Fe: ≤0.002%; N: ≤0.005%; excess alkali (as NaOH): ≤0.1%
• temp. przechowywania: 15-25°C
• InChI: 1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
• Klucz InChI: WPZFLQRLSGVIAA-UHFFFAOYSA-N

Opis

Zastosowanie

• 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).

Komentarz do analizy

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 %

Informacje prawne

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

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS07
• Hasło ostrzegawcze: Warning
• Zwroty wskazujące rodzaj zagrożenia: H302
• Zwroty wskazujące środki ostrożności: P264 - P270 - P301 + P312 - P501
• Klasyfikacja zagrożeń: Acute Tox. 4 Oral
• Kod klasy składowania: 13 - Non Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 2
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable