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Thread: Looking for sublimation materials at less than 300 degrees C

  1. #1 Looking for sublimation materials at less than 300 degrees C 
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    Would anyone happen to know of a material that occurs in a sheet form and sublimates or decomposes at temperatures of about 300 degrees C without leaving any residues? Thanks for your response.


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    Forum Professor Zwolver's Avatar
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    What pressure are you working with, or only atmospheric pressure? Say if you would go down to 10^-6 bar of pressure, you would be able to sublimate any solid material quite easily, albeit slowly.


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    Thank you for your response Zwolver, I am working at atmospheric pressure. I don't know how possible it would be to go down to lower pressures in an oven.
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    Quote Originally Posted by kelvix21 View Post
    Thank you for your response Zwolver, I am working at atmospheric pressure. I don't know how possible it would be to go down to lower pressures in an oven.
    Lowering pressure would lower the sublimation point. Heat can be applied through direct conduction from the surrounding gas and from radiation, so an oven even at full vacuum is not a problem.
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  6. #5  
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    You could try napthalene perhaps. It can be melted into a thin layer or sliced with a microtome or something similar to make sheets and it sublimes below 80 degrees.
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