Wishbone (Torenia fournieri) flower that has had sodium hydroxide solution dropped on to its petal. Where the basic solution has hit,the petal has changed colour from purple to yellow. Many flowers act as indicators,changing colour on contact with acid or bases | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Beautifulchemistry.net |
Taille de l’image : | 3945 px × 2219 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |