Iron and sulphur powders on watch-glasses with derivatives of these chemical elements. Iron (Fe) is a metal that is extracted from ores in the ground and used extensively in construction and manufacturing. Sulphur (S) is a reactive element mined from subterranean sources by the use of superheated steam. It is mainly used in the production of sulphuric acid,an important industrial chemical. Also seen is a mixture of iron and sulphur (lower left) and a compound of iron and sulphur,iron sulphide (FeS2,lower right) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 3543 px × 2719 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |