Test For Carbon Dioxide #2
by Martyn F. Chillmaid/science Photo Library
Title
Test For Carbon Dioxide #2
Artist
Martyn F. Chillmaid/science Photo Library
Medium
Photograph - Photograph
Description
Test for carbon dioxide. The liquid in the test tube is a saturated solution of calcium hydroxide (limewater), which is colourless (left). When air is bubbled into it through a glass straw the carbon dioxide turns the limewater cloudy (right). This is because calcium carbonate is precipitated out as a white suspended solid.
Uploaded
May 9th, 2022
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