The semiconductor used here is zinc oxide (zincite), which is obtained by taking a strip of zinc and heating it with a blow torch. This creates spots of zinc oxide on the strip, which can then be ...

Save guides, add subjects and pick up where you left off with your BBC account. Zinc oxide reacts with hydrochloric acid to form zinc chloride and water. Zinc oxide is insoluble in water.

These tend to provide less sun protection, CR's tests have found, but a few are better than othersMineral sunscreens contain ...

Typically, sunblock includes zinc oxide or titanium dioxide ... as it may cause an allergic reaction. Before trying a new sunscreen or sunblock, read the label to make sure you’ll get the ...

Metal oxide nanoparticles, such as titanium dioxide (TiO2), zinc oxide (ZnO), and cerium oxide (CeO2), are widely used as catalysts for various chemical reactions, including photocatalysis, water ...