SODIUM TUNGSTATE DIHYDRATE FOR ANALYSIS

Code: 1066730250 D2-231

Analysis Note

Assay (thermogravimetric): ≥ 99 %Identity (x-ray diffraction): passes testFree alkali (as NaOH): ≤ 0.10 %Chloride (Cl): ≤ 0.003 %Sulfate (SO

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OVERVIEW

Analysis Note

Assay (thermogravimetric): ≥ 99 %Identity (x-ray diffraction): passes testFree alkali (as NaOH): ≤ 0.10 %Chloride (Cl): ≤ 0.003 %Sulfate (SO4): ≤ 0.01 %Total nitrogen (N): ≤ 0.001 þ (Iron): ≤ 0.0005 %Mo (Molybdenum): ≤ 0.005 %Pb (Lead): ≤ 0.001 %

Legal Information

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

Packaging

1 kg in Plastic bottle

SPECIFICATIONS
anion tracessulfate (SO42-): ≤0.01%, chloride (Cl-): ≤0.003%
assay≥99% (thermogravimetric)
bulk density1600 kg/m3
cation tracesFe: ≤0.0005%, excess alkali (as NaOH): ≤0.10%, Mo: ≤0.005%, N: ≤0.001%, Pb: ≤0.001%
density3.23 g/cm3 at 20 °C
formcrystals
InChI keyWPZFLQRLSGVIAA-UHFFFAOYSA-N
InChI1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
mp100 °C (Elimination of water of crystallisation)
pH8-9 (20 °C, 50 g/L in H2O)
potency1190 mg/kg LD50, oral (Rat)
product lineEMSURE®
Quality Level300
solubility730 g/L
storage temp.15-25°C
DOCUMENTS
RANGE
ATTRIBUTES
Cas Number10213-10-2
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