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Use of a Tea Infuser To Submerge Low-Density Dry Ice
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Abstract
A tea infuser is used as a container to hold low-density dry ice. When used with the classic demonstration where dry ice is used to acidify a solution in a graduated cylinder, the dry ice is suspended in the middle of the cylinder, allowing the solution in the upper half of the cylinder to change color while the lower half remains unchanged. Phase changes, acid–base chemistry, and diffusion phenomena are all illustrated.
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Keywords (Audience):
High School / Introductory ChemistryKeywords (Domain):
DemonstrationsKeywords (Feature):
JCE DigiDemos: Tested DemonstrationsKeywords (Subject):
Acids / BasesCiting Articles
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This article has been cited by 1 ACS Journal articles (1 most recent appear below).
Small-Scale Production of High-Density Dry Ice: A Variant Combination of Two Classic Demonstrations
Paul A. FlowersJournal of Chemical Education2009 86 (4), 470Small-Scale Production of High-Density Dry Ice: A Variant Combination of Two Classic Demonstrations
Paul A. FlowersJournal of Chemical Education2009 86 (4), 470Easily recoverable, thumb-sized pieces of high-density dry ice are conveniently produced by deposition of carbon dioxide within a test tube submerged in liquid nitrogen. A carbon dioxide-filled balloon sealed over the mouth of the test tube serves as a ...
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History
- Received: August 03, 2009
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