1.06672
Sodium tungstate dihydrate
EMPLURA®
Synonym(s):
Sodium tungstate dihydrate
About This Item
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Quality Level
product line
EMPLURA®
Assay
≥98% (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-): ≤0.01%
sulfate (SO42-): ≤0.02%
cation traces
Fe: ≤0.002%
N: ≤0.005%
excess alkali (as NaOH): ≤0.1%
storage temp.
15-25°C
InChI
1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
InChI key
WPZFLQRLSGVIAA-UHFFFAOYSA-N
Application
- 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).
Analysis Note
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 %
Legal Information
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Listings
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ISHL Indicated Name
Substances Subject to be Indicated Names
ISHL Notified Names
Substances Subject to be Notified Names
Certificates of Analysis (COA)
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