| Weight | 25 Grams |
|---|---|
| Brand | Unbranded |
Check the listing for details. TUNGSTEN TRIOXIDE, WO3,99.9%, , 25, 50, 100, 250, 500, 1000... GRAMS. Condition: New. Listed at 39.50 USD. These minerals are rare to very rare secondary tungsten minerals. TUNGSTEN TRIOXIDE, WO3,99.9%, High Grade, 10, 25, 50, 100, 250, 500 GMS. Tungsten ores are treated with alkalis to produce WO3. 2 WO3 + 3 C → 2 W + 3 CO2 (high temperature).