Tellurium dioxide

TeO2

The natural mineral of tellurium dioxide is "flavuride". Chemical formula TeO2. Molecular weight 159.60. Colorless crystal, melting point 732.6 ℃. Dicrystalline form: Tetragonal form derived from nitric acid remedy, looking like an octahedral type. Relative thickness 5.67( 15 ℃). After home heating, it turns yellow, melts into dark yellow fluid, as well as cools to acicular crystal (ordnance system) with a loved one density of 5.91( 0 ℃). Insoluble in water.

Adducts as well as salts are conveniently liquified in focused strong acids; It is additionally conveniently soluble in caustic alkali solution to develop tellurite. Insoluble in ammonia. Tellurium is produced by combustion in oxygen or by response of tellurium with cold concentrated nitric acid and evaporation of the response remedy.

Prep work technique: Response of essential tellurium powder with nitric acid, heating to full response of tellurium powder to quit launching nitrogen oxide, evaporative air conditioning crystallization to get alkali tellurium Te2O3( OH) NO3, as well as home heating decay of this item at 400 ~ 430 ℃.

Application

Tellurium dioxide powder is made use of to expand TeO2 single crystal or make acoustooptic materials. It is a conditional glass forming agent and also can be utilized as an additive in semiconductor components, conductive pastes as well as electroplating options.

Commonly made use of in acoustooptic deflectors, acoustooptic modulators, acoustooptic harmonics, acoustooptic filters, tunable filters and also various other type of acoustooptic gadgets.

Under the exact same aperture, the resolution can be improved by orders of magnitude. At the same time, the acousto-optic gadgets constructed from tellurium oxide have the advantages of fast feedback rate, tiny driving power, high diffraction efficiency, steady as well as trusted efficiency.

Features of TeO2 crystal:

⚫High refractive index;

⚫Low noise attenuation;

⚫High quality element;

⚫Exceptional acoustic and also optical buildings;

⚫Big sound and light top quality aspect;

⚫High openness to visible light.

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