Positive test for carbon dioxide. The liquid in the test tube is a saturated solution of calcium hydroxide (limewater),which is colourless. When air is bubbled into it through a glass straw the carbon dioxide turns the limewater cloudy. This is because calcium carbonate is precipitated out as a white suspended solid | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 3414 px × 5120 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |