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243450
Tellurium dioxide
≥99%
Synonim(y):
Tellurium(IV) oxide
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About This Item
Wzór liniowy:
TeO2
Numer CAS:
Masa cząsteczkowa:
159.60
Numer WE:
Numer MDL:
Kod UNSPSC:
12352303
Identyfikator substancji w PubChem:
NACRES:
NA.23
Polecane produkty
Poziom jakości
Próba
≥99%
Postać
powder
mp
733 °C (lit.)
gęstość
5.67 g/mL at 25 °C (lit.)
ciąg SMILES
O=[Te]=O
InChI
1S/O2Te/c1-3-2
Klucz InChI
LAJZODKXOMJMPK-UHFFFAOYSA-N
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Opis ogólny
Tellurium dioxide, also known as tellurium(IV) oxide, is a white, crystalline solid with a melting point of 1,130 °C and a boiling point of 1,850 °C. Tellurium dioxide is an important material in a number of applications, including as a catalyst in the synthesis of plastics resins, and pharmaceuticals, and as a component in tellurium-based alloys. Tellurium dioxide is typically made at high temperatures either by decomposition of tellurium(IV) chloride or tellurium(IV) sulfate in the presence of oxygen.
Zastosowanie
Tellurium dioxide is used to prepare tellurium metal, telluric acid, and many tellurium salts. It may also be used in the preparation of Ag2Te nanoparticles.
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Hasło ostrzegawcze
Danger
Zwroty wskazujące rodzaj zagrożenia
Zwroty wskazujące środki ostrożności
Klasyfikacja zagrożeń
Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Lact. - Repr. 1B - Skin Sens. 1B
Kod klasy składowania
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
Klasa zagrożenia wodnego (WGK)
WGK 3
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
Środki ochrony indywidualnej
Eyeshields, Gloves, type N95 (US)
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TeO(2)-CdF(2)-WO(3) glasses with various compositions and Er(3+) concentrations were prepared by conventional melting method. Their optical properties were studied by measuring the absorption, luminescence spectra and the decay patterns at room temperature. From the optical absorption spectra the Judd-Ofelt parameters
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