File:Tungsten halogen cycle halogen lamp.svg
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![File:Tungsten halogen cycle halogen lamp.svg](https://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Tungsten_halogen_cycle_halogen_lamp.svg/241px-Tungsten_halogen_cycle_halogen_lamp.svg.png?20220302223615)
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tungsten halogen cycle in halogen lamps
Wolfram-Halogen-Prozess in Halogenlampen
Summary
[edit]DescriptionTungsten halogen cycle halogen lamp.svg |
Deutsch: Wolfram-Atome reagieren mit Kleinstmengen an Iod und Spuren sauerstoffhaltiger Moleküle (z.B. H2O-Spuren) im kälteren Bereich der Glühlampe zu Wolframdioxiddiodid. In einer mehrstufigen Reaktion geht der Iodanteil verloren. In den heißen Bereichen und am Glühfilament dissoziiert schlussendlich das WO2 zu Wolfram und Sauerstofffatomen. Das Wolfram kann sich am Filament wieder ablagern.
English: In the cooler areas of the atmosphere inside the bulb, tungsten atoms can react with iodine and an oxygen-source (e.g. traces of water) to WO2I2. The compound eventually decomposes in a multistep reaction, mainly to WO2. This compound dissociates at the hot areas around the filament. The tungsten atoms can condesate at the filament. |
Date | |
Source | Own work |
Author | Andi schmitt |
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current | 22:36, 2 March 2022 | ![]() | 241 × 263 (42 KB) | Andi schmitt (talk | contribs) | Uploaded own work with UploadWizard |
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Width | 68.092354mm |
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Height | 74.083786mm |