Sodium Tungstate Dihdrate GR 250 Grm
for analysis EMSURE®
Manufacturer: Merck
Catalog ID: 106673.0250
Stock: In Stock
Description
| Catalogue Number | 106673 |
Product Information
| CAS number | 10213-10-2 |
| EC number | 236-743-4 |
| Hill Formula | Na₂O₄W * 2 H₂O |
| Chemical formula | Na₂WO₄ * 2 H₂O |
| Molar Mass | 329.86 g/mol |
| HS Code | 2841 80 00 |
Physicochemical Information
| Density | 3.23 g/cm3 (20 °C) |
| Melting Point | 100 °C Elimination of water of crystallisation |
| pH value | 8 - 9 (50 g/l, H₂O, 20 °C) |
| Bulk density | 1600 kg/m3 |
| Solubility | 730 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 1190 mg/kg |
Storage and Shipping Information
| Storage | Store at +15°C to +25°C. |
Specifications
| Assay (thermogravimetric) | ≥ 99 % |
| 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 % |
