Bunsen burner. Lit bunsen burner with volumetric flasks,and safety spectacles (at lower right). The flame is coloured blue where the gas is burning completely in oxygen. It is coloured yellow in areas where the gas is burning incompletely,resulting in a smoky flame | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Tek Image |
Taille de l’image : | 4023 px × 4370 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |