MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Zinc sulphate is made up of needle like crystals. A watch glass of hydrated zinc sulphate, chemical formula - ZnSO4.7H2O. Zinc sulphate is a skin irritant but has a wide range of uses in paints, fertilisers, animal feeds, preservatives and medical drugs.
Model release not required. Property release not required.