Test Tube Sublimation

In my previous post (The Art of Sublimation) I showed pictures of carbon dioxide sublimating from a pellet of dry ice (solid carbon dioxide). In the series of pictures below a pellet of dry ice and a splash of water was added to a test tube which greatly increased the rate of sublimation. The “smoke” pouring from the test tubes is gaseous carbon dioxide – note that the carbon dioxide falls from the test tube as the carbon dioxide is heavier than air.

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~ by lsaaby on May 8, 2010.

2 Responses to “Test Tube Sublimation”

  1. Hi! I’m a writer-producer based in Singapore. Currently, I’m working on an educational series. I am just trying my luck here, but can I borrow your pictures(test tube sublimation). To be perfectly honest, I am working on a tight budget and what I can offer is a DVD copy of the documentary and credits (your name/website) in the CBB. Thank you so much and I hope to get a favorable reply from you.

    Best Regards,
    Mahan Ramos

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