Rust experiment

Numéro d’image : 11899640
Rust experiment
Rust experiment. Image 2 of 2. Iron nails in test tubes under different conditions,from left to right: water & air,drying agent,distilled water topped with oil,and salty water. Rust (brown) is hydrated iron oxide,produced by a chemical reaction between iron metal and the water & oxygen in the air. This process can be accelerated by the presence of ions in solution,such as saltwater. The nails in the tubes exposed to water and oxygen (far left & right) have rusted. The nails exposed to oxygen but no water (left) and water but no oxygen (right) have not rusted. For the beginning of this experiment,see image T745/069
Licence : Droits gérés
Crédit: Science Photo Library / Andrew Lambert Photography
Taille de l’image : 4992 px × 3671 px
Model Release : Non requis
Property Release : Non requis
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