How to break down Dichlorodifluoromethane

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Discussion Overview

The discussion revolves around methods for breaking down dichlorodifluoromethane, including the potential hazards associated with its decomposition products. The scope includes theoretical and practical considerations regarding chemical reactions and safety precautions.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about methods to break down dichlorodifluoromethane.
  • Another participant suggests methods such as dissolving metal reduction with Na/NH3, UV photolysis, and thermal decomposition.
  • Concerns are raised about the decomposition of dichlorodifluoromethane into phosgene gas and free chlorine gas at high temperatures, emphasizing the need for caution.
  • Questions arise regarding the decomposition products, specifically the confusion between phosgene and phosphine, with one participant clarifying that phosgene does not contain phosphorus.
  • A participant mentions that phosgene can break down into hydrochloric and hydrofluoric acid, sharing personal experience related to the semiconductor industry.

Areas of Agreement / Disagreement

Participants express concerns about the safety of handling dichlorodifluoromethane and its decomposition products, but there is confusion regarding the specific chemical products formed during decomposition, indicating a lack of consensus on this aspect.

Contextual Notes

The discussion includes potential hazards associated with high-temperature decomposition and the need for safety precautions, but lacks detailed exploration of the chemical mechanisms involved.

Neutrino98
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Hi people, I was wondering what method could I use to break down such a bond. Thanks for answering
 
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Dissolving metal reduction like Na/NH3, UV photolysis and thermal come to mind.
 
Just a warning on this, as better to be safe than sorry. Please be aware that dichlorodifluoromethane decomposes into phosgene gas--a highly toxic and deadly nerve agent--at temperatures above about 1000 deg. F. Also free chlorine gas can be liberated under the right conditions as well. Please be careful!
 
NeuronsAtWork said:
Just a warning on this, as better to be safe than sorry. Please be aware that dichlorodifluoromethane decomposes into phosgene gas--a highly toxic and deadly nerve agent--at temperatures above about 1000 deg. F. Also free chlorine gas can be liberated under the right conditions as well. Please be careful!

how does that decompose into phosphine? where would the phosphorus come from?
 
pa5tabear said:
how does that decompose into phosphine? where would the phosphorus come from?

I think he said phosgene which is O=C(Cl)2, the fully chlorinated analog of formaldehyde.

It could happen in the presence of oxygen.
 

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