Separating salt from rock salt. Rock salt being separated from its impurities. Here,crushed rock salt is added to warm water to dissolve the salt. The solution is then filtered to remove any insoluble impurities and heated gently to evaporate off the water. This will leave the pure salt behind | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Trevor Clifford Photography |
Taille de l’image : | 5119 px × 3425 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |