Tantalum pentoxide (Ta2O5) is a white colorless crystalline powder, the most common oxide of tantalum, and the final product of tantalum burning in air. It is mainly used for pulling lithium tantalate single crystal and manufacturing special optical glass with high refraction and low dispersion. It can be used as catalyst in chemical industry.
Use and preparation
【use】
Raw materials for the production of metal tantalum. Also used in electronics industry. It is used for pulling lithium tantalate single crystal and manufacturing special optical glass with high refraction and low dispersion. It can be used as catalyst in chemical industry.
【Preparation or source】
Potassium fluorotantalate method: Heating potassium fluorotantalate and sulfuric acid to 400°C, adding water to the reactants until boiling, fully diluting the acidified solution to hydrolyze, forming hydrated oxide precipitates, and then separating, washing, and drying to obtain pentoxide Two tantalum products.
2. Metal tantalum oxidation method: dissolve metal tantalum flakes in nitric acid and hydrofluoric acid mixed acid, extract and purify, precipitate tantalum hydroxide with ammonia water, wash with water, dry, burn and grind finely to obtain tantalum pentoxide finished product.
Safety Packed in polyethylene plastic bottles with double-layer caps, each bottle has a net weight of 5kg. After being tightly sealed, the outer polyethylene plastic bag is placed in a hard box, filled with paper scraps to prevent movement, and each box has a net weight of 20kg. Store in a ventilated, dry place, not stacked in the open air. Packaging should be sealed. Protect from rain and packaging damage during transportation. In case of fire, water, sand and fire extinguishers can be used to extinguish the fire. Toxicity and Protection: Dust can irritate the mucous membrane of the respiratory tract, and long-term exposure to dust can easily cause pneumoconiosis. The maximum allowable concentration of tantalum oxide is 10mg/m3. When working in an environment with high dust content, it is necessary to wear a gas mask, to prevent the emission of oxide dust, and to mechanize and seal the crushing and packaging processes.
Post time: Dec-14-2022