TeO2
Tellurium dioxide
CAS: 7446-07-3;11099-09-5
Molecular Formula: O2Te
TeO2 - Names and Identifiers
TeO2 - Physico-chemical Properties
| Molecular Formula | O2Te |
| Molar Mass | 159.6 |
| Density | 5.67 g/mL at 25 °C (lit.) |
| Melting Point | 733 °C (lit.) |
| Boling Point | 1245 °C |
| Water Solubility | insoluble |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Powder |
| Specific Gravity | 5.8 |
| Color | White to slightly yellow |
| Exposure Limit | ACGIH: TWA 0.1 mg/m3NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3 |
| Maximum wavelength(λmax) | ['360nm(neat)(lit.)'] |
| Merck | 14,9123 |
| Storage Condition | no restrictions. |
| Stability | Stable. Incompatible with strong acids, strong oxidizing agents. |
| Sensitive | Sensitive to humidity |
| MDL | MFCD00011263 |
| Physical and Chemical Properties | Boiling Point: 1245°C Melting Point: 733°C density: 5.67 |
| Use | Used as electronic components materials and preservatives, but also for the detection of bacteria in the vaccine |
TeO2 - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 3284 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | WY2675000 |
| TSCA | Yes |
| HS Code | 28112900 |
| Hazard Class | 6.1(a) |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
TeO2 - Reference
| Reference Show more | 1. He, B., Yan, X. An amperometric zearalenone aptasensor based on signal amplification by using a composite prepared from porous platinum nanotubes, gold nanoparticles and thionine-labelled graphene oxide. Microchim Acta 186, 383 (2019). https://doi.org/10.1 2. He, B., Yan, X. An amperometric zearalenone aptasensor based on signal amplification by using a composite prepared from porous platinum nanotubes, gold nanoparticles and thionine-labelled graphene oxide. Microchim Acta 186, 383 (2019). https://doi.org/10.1 3. [IF=5.833] He Baoshan et al."An amperometric zearalenone aptasensor based on signal amplification by using a composite prepared from porous platinum nanotubes, gold nanoparticles and thionine-labelled graphene oxide."Microchim Acta. 2019 Jun;186(6):1-10 |
TeO2 - Introduction
Soluble in sodium hydroxide solution and hydrochloric acid, and form double salt. Almost insoluble in ammonia, solubility in water 1:150000. Sublimation begins at 450 ℃. Toxic.
Last Update：2022-10-16 17:28:23
TeO2 - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| tellurium dioxide (TeO2) crystal | tellurium dioxide (TeO2) crystal is a kind of Acousto-optic crystal material with excellent performance, it has both excellent acousto-optic properties and high natural abundance of 130Te and double beta decay properties. Now tellurium dioxide crystal has been widely used in a variety of Acousto-optic equipment, such as acousto-optic deflector, acousto-optic modulator, acousto-optic tunable harmonic. The acousto-optic device made of tellurium oxide can improve the resolution by an order of magnitude under the same light aperture, and has fast response speed, small driving power and high diffraction efficiency, the advantages of stable and reliable performance. Therefore, TeO2 crystal is a kind of Acousto-optic device material with broad application prospects, especially acousto-optic modulator and acousto-optic harmonic wave, and its application in optical computing, optical communication and optical microscopic imaging is developing rapidly. In addition to its application in acousto-optic devices, tellurium dioxide can also be used in neutrino and dark matter research. Features: wide light transmission range: 350-5000nm large size: 50-60mm × 40-70mm high refractive index: no = 2.274;ne = 2.430 @ 633nm high quality factor:(M2 = 10-8S3/g): 795 [Silica] 1, [PbMo4] 36 |
| Use | used as a material and preservative for electronic components, also used for bacterial detection |
Last Update：2024-04-09 02:00:11
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