As I got some a finger sized of dry ice in water, it started to bubble vigorously as expected and gave off a lot of smoke. But after 3 minutes or so, the rate of sublimation seems to slow down a lot, and in only bubbles from one spot of the ice, and the rest of the dry ice seems to be not sublimating anymore. I dropped the dry ice into tap water.

So what causes the decrease in rate of the sublimation? Would drinking/distilled water cause different results from tap water?


  • 7
    $\begingroup$ I guess it got covered with water ice. $\endgroup$ Sep 14 at 6:04
  • 1
    $\begingroup$ Exactly so - water ice insulates the dry ice. $\endgroup$
    – Waylander
    Sep 14 at 7:17
  • $\begingroup$ I remember preference of warm/hot water for visual fog ( not smoke ) effects. $\endgroup$
    – Poutnik
    Sep 14 at 8:03

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