[Stoves] Drawing down the dung pile

[Kevin]

Dear Crispin
  ----- Original Message ----- 
  From: Crispin Pemberton-Pigott 
  To: 'Discussion of biomass cooking stoves' 
  Sent: Tuesday, December 07, 2010 9:57 AM
  Subject: Re: [Stoves] Drawing down the dung pile


  Hang on.

   

  >If halogens are present, the flame will turn green.

   

  Copper heated to a high temperature always give a green flame. Copper oxide.



  # No. You get a clear flame when no halogens are present. You only get the green when halogens are present. 



  Best wishes,



  Kevin

   

  ??

  Crispin

   



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