Epsom salt. Epsom salt (magnesium sulphate heptahydrate, MgSO4 7H2O) in a watch glass. It has a variety of medical and agricultural uses. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 5158 px × 3431 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |