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Sodium selenite anhydrous
Product Identifier
Product Description
| Molecular weight |
172.94 |
| Molecular formula |
Na2SeO3 |
| CAS No. |
10102-18-8 |
Quality Control
| Appearance |
White or almost white crystalline deliquescent powder |
| Solubility |
Freely soluble in water, practically insoluble in ethanol (96%) |
| pH (10% in water at 25°C) |
9.80 -10.80 |
| Identification A |
A red precipitate is formed which may become black. |
| Identification B |
The solution remains clear. |
| Identification C |
Reactions for sodium |
| Identification D |
It complies with the limits of the assay. |
| Appearance of solution |
10% solution in water is clear and colourless. |
| Chloride |
<= 0.005% |
| Iron |
<= 0.005% |
| Sulfates and selenates |
<= 0.03% |
| Loss on drying (at 130°C, 2hr) |
<= 0.5% |
| Assay (Iodometry) |
98.50 101.50% |
Storage and Shelf Life
| Storage |
Store below 30°C. away from bright light. |
| Shelf life |
48 months. |
| Usage |
Use before expiry date given on the product label. |
CAS Number :
10102-18-8
Molecular Formula :
Na₂SeO₃
More Information
| Product Name |
Sodium selenite anhydrous |
| SKU |
TC169E |
| CAS No |
10102-18-8 |
| EC No. |
233-267-9 |
| EC Index No. |
034-003-00-3 |
| Molecular formula |
Na₂SeO₃ |