Tantalum Pentoxide

Product specification: Sintered granules, 99.99%

Appearance Description: Black

Size range: 1-3mm, 3-5mm

Unit of measurement: kg

Product advantages: high quality, complete specifications, suitable for a variety of applications

Application areas: optical coating

Product use: Filters; Highly reflective films; Insulating films

Mainly available in sintered compacts and granules, with a purity of 99.99%, Tantalum pentoxide is an excellent high refractive index material, suitable for a variety of optical coatings, to meet the needs of different customers.

Properties： White rhombohedral crystal, rhombic column.

Solubility： Soluble in molten potassium hydrosulphate and hydrofluoric acid, insoluble in water and other acids.

Uses and preparation：

Use： Raw material for the production of tantalum metal. Also used in the electronics industry. It is used for pulling lithium tantalate single crystals and making high refraction and low dispersion special optical glass and can be used as a catalyst in the chemical industry.

Preparation or source：

1. Potassium fluorotantalate method: potassium fluorotantalate and sulfuric acid are heated to 400℃, the reactants are added with water to boil, and the acidified solution is hydrolyzed by sufficient dilution to produce a hydrated oxide precipitate, which is then separated, washed and dried to obtain finished tantalum pentoxide. 2K2TaF7+2H2SO4+5H2O→Ta2O5+2K2SO4+14HF

2. Tantalum metal oxidation method: Dissolve tantalum metal flakes in nitric acid and hydrofluoric acid mixed acid, extract and purify, precipitate tantalum hydroxide with ammonia, then wash, dry, scorch and grind fine to get finished tantalum pentoxide.

Safety: Packed in double-lidded polyethylene plastic bottles, net weight 5kg per bottle, sealed tightly and placed in a hard box with a polyethylene plastic bag, filled with paper scraps to prevent tampering, net weight 20kg per box, stored in a ventilated and dry place, not to be stacked in the open. The packaging should be sealed. When transporting, protect yourself from rain and package breakage. In case of fire, use water, sand, and fire extinguishers to put out the fire. Toxicity and protection: The dust has an irritating effect on the mucous membranes of the respiratory tract, and long-term exposure to dust can cause pneumoconiosis. The maximum permissible concentration of tantalum oxide is 10mg/m3. When working in an environment with high dust content, it is necessary to wear an anti-toxic mask, to prevent the emission of oxide dust, and to mechanize and seal the crushing and packaging processes.

Other： Its chemical properties are similar to those of niobium pentoxide.

Product parameters

Tantalum pentoxide（Molecular formula：Ta2O5）

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