CAS:10213-10-2 | Sodium Tungstate Dihydrate
Molecular Formula：H4Na2O6W
Molecular Weight：329.85
Einecs:600-275-2
Package:1g 5g 10g 25g 50g 75g 100g 500g 1kg 2.5kg 10kg 25kg
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Product Introduction
Application
Mainly used in the manufacture of metal tungsten, tungstic acid and tungstate, as well as dyes, pigments, inks, electroplating, etc.
It is also used as a fire retardant, catalyst, etc. for fabrics and cellulose. Applications such as electroplating grades and catalysts must be of analytical grade.
Specification
| Melting Point | 698 °C(lit.) |
| Boiling Point | 4.18 |
| Storage Tem. | Store at +15°C to +25°C. |
| Solubility | H2O: 1 M at 20 °C, clear, colorless |
| Form | Solid |
| Color | White to slightly yellow |
| Proportion | 3.25 |
| Odor | Odorless |
| PH | 9.5-11.5 (25℃, 1M in H2O) |
| Water solubility | 730 g/L (20 ºC) |
| λmax | λ: 260 nm Amax: ≤0.120λ: 280 nm Amax: ≤0.035 |
| Exposure limit | ACGIH: TWA 3 mg/m3NIOSH: TWA 1 mg/m3; STEL 3 mg/m3 |
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