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SODIUM TUNGSTATE DIHYDRATE AR/ACS
Reagent for determination of Uric acid.
Tungstic acid sodium salt dihydrate
MSDS
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COAs
Packings
100 g
(00100)
250 g
(00250)
500 g
(00500)
Print friendly version
Article No.
06057
Grade
AR/ACS
Purity
99%
CAS No.
10213-10-2
Molecular Formula
Na
2
WO
4
.2H
2
O
Molecular Weight
329.86
H.S. Code
2841.8010
Shelf Life
60 Months
Physical Properties
Physical state at 20 °C
Solid
Colour
White crystalline
Odour
Odorless
pH value
9 - 11.5 at 100 g/l at 20 °C
Melting point/ Freezing point [°C]
698 °C
Density [g/cm3]
4.18
Solubility in water [% weight]
730 g/L (20°C)
Specifications
Appearance
White Crystalline Powder
Assay
99 - 101%
Insoluble matter
Max 0.01%
Free alkali (as NaOH)
Max 0.02 meq/gm
Chloride (Cl)
Max 0.005%
Sulphate (SO4)
Max 0.01%
Total nitrogen (N)
Max 0.001%
Heavy metals and iron (as Pb)
Max 0.001%
Molybdenum (Mo)
Max 0.001%
Arsenic (As)
Max 0.0005%
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H302
Precaution Statement: P264-P270-P301+P312-P501
Revision Date:
23-Jan-2024
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SODIUM TUNGSTATE DIHYDRATE