Iodine clock reaction. At left,a clear solution of potassium iodide,sodium thiosulfate,and starch is added to a clear solution of hydrogen peroxide with sulfuric acid in the conical flask. A digital clock is started. At right,a chemical equilibrium has been reached when the solution turns a dark blue/black. The digital timer is stopped and the reaction time is read off | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Chillmaid, Martyn F. |
Bildgröße: | 6994 px × 2573 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |