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Characteristics: | Tantalum pentoxide is odorless, stable white microcrystalline, with a density of 8.2 g/mL at 25 ° C and a melting point of 1872 °C. It is insoluble in water, ethanol and mineral acid, but soluble in hydrofluoric acid. |
Technology: | Hot Pressing Sintering Method |
Applications: | 1. As catalyst in chemical industry. 2. Thin film coating materials and other industries of film deposition on different usages. |
Storage: | Keep the container sealed and stored in a cool, dry place, and ensure that the workshop has good ventilation or exhaust devices. |


Product Name | Coating Materials Penta Tantalum Oxide 99.99% Ta2O5 Tablets Tantalum Pentoxide |
Other Name | Tantalum(v) oxide, Tantalum pentoxide, Ta2O5 |
Appearance | black tablet |
Specification | Ta2O5 tablets: 8.5x3mm Ta2O5 tablets: 14.5x7.5mm Ta2O5 granules: 1.0-2.0mm Ta2O5 granules: 1.0-3.0mm Customized |
Technology | press and sinter tantalum pentoxide |
Purity | Ta2O5 99.99% |
Certificate | ISO9001:2015, ISO14001:2015, ISO45001:2018 |
Molecular Formula | Ta2O5 |
Brand Name | Tuocai |
Density | 8.2 g/mL at 25 °C |
Melting Point | 1872 °C |
Solubility | insoluble in water, ethanol and mineral acid, soluble in hydrofluoric acid |
Elements | Standard |
Ta2O5 | >99.99% |
Cr | <5ppm |
Cu | <3ppm |
Fe | <5ppm |
Ni | <3ppm |
Mn | <3ppm |
Nb | <20ppm |
Si | <13ppm |
Ti | <1ppm |
Other impurities | Not detected by ICP-MS |
Coating Materials | CAS No. | Purity | Specification |
Zinc Sulfide (ZnS) | 1314-98-3 | 4N | granules: 3.0-5.0mm, 3.0-12.0mm tablets: Φ10x6mm |
Tantalum Pentoxide (Ta2O5) | 1314-61-0 | 4N | granules: black 1.0-3.0mm tablets: Φ8.5x3mm |
Trititanium Pentoxide(Ti3O5) | 12065-65-5 | 3N5 | granules 0.7-5.0mm |
Niobium Pentoxide(Nb2O5) | 1313-96-8 | 4N | granules: 1.0-3.0mm |







Competitive Price: | We are factory direct and have the economy of scale. |
Clean Production Environment: | Production is conducted in a million level dust-free purification workshop. |
Professional Team: | More than 10 years of R&D and production experience, 20+ patents and 10+ professors' R&D papers. |
Powerful Technical Support: | Powerful Technical support from Institute of Semiconductors,Chinese Academy of Sciences, Huazhong University of Sicence and Technology, and Wuhan University of Technology. |
Prompt Shipment: | Primary materials such as Tellurium, Bismuth, Selenium, Antimony, Indium, Germanium, Gallium, Cadmium have sufficient inventory. |
24-Hour Service: | 24 hours Pre-sales and after-sales are ready to answer any questions by Calling or Email: Hot line: +86-15002785780 E-mail: info@91material.com |







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