| Index Name | Index % | ||
| Fine Product | Exporting Grade | Industrial Grade | |
| Na2WO4.2H2O | 99.0 | 98.0 | ≥96.0 |
| Mo | 0.001 | 0.02 | - |
| As | 0.001 | 0.01 | 0.01 |
| Cu | 0.0001 | 0.005 | 0.001 |
| Al | 0.001 | 0.0025 | 0.01 |
| Fe | 0.001 | 0.002 | 0.01 |
| Si | 0.004 | 0.04 | 0.04 |
| Water Insoluble Substances | 0.005 | 0.05 | 0.1 |
| PH | 7.5-9.5 | - | - |
| Moisture Content | 11-15 | - | - |
Use: As the intermediate for manufacturing tungsten material; also applied to the manufacture of mordant, catalyst, pigment, analytic reagent, fabric-weight agent in the textile industry, also applied to the fire prevention, waterproof fabric.
Package: Iron drums or knit bags with the net capacities of 50 kg or 100 kg.
