1.06673
Sodium tungstate dihydrate
for analysis EMSURE®
Synonym(s):
Sodium tungstate dihydrate
About This Item
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Quality Level
product line
EMSURE®
assay
≥99% (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-): ≤0.003%
sulfate (SO42-): ≤0.01%
cation traces
Fe: ≤0.0005%
Mo: ≤0.005%
N: ≤0.001%
Pb: ≤0.001%
excess alkali (as NaOH): ≤0.10%
storage temp.
15-25°C
InChI
1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
InChI key
WPZFLQRLSGVIAA-UHFFFAOYSA-N
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Application
- 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).
Analysis Note
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 %
Legal Information
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral
Storage Class
13 - Non Combustible Solids
wgk_germany
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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