Melting sulphur, 1 of 4. A crucible with powdered sulphur, S, is heated over a Bunsen burner flame. It first melts to a straw-yellow liquid and then darkens to a red-brown colour. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Turtle Rock Scientific |
Taille de l’image : | 3410 px × 5136 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |