Search results
Results from the WOW.Com Content Network
Zinc oxide is an inorganic compound with the formula Zn O.It is a white powder which is insoluble in water. ZnO is used as an additive in numerous materials and products including cosmetics, food supplements, rubbers, plastics, ceramics, glass, cement, lubricants, [12] paints, sunscreens, ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, semi conductors ...
Zinc oxide is used to protect rubber polymers and plastics from ultraviolet radiation (UV). [125] The semiconductor properties of zinc oxide make it useful in varistors and photocopying products. [144] The zinc zinc-oxide cycle is a two step thermochemical process based on zinc and zinc oxide for hydrogen production. [145]
Zinc oxide nanoparticles are nanoparticles of zinc oxide (ZnO) that have diameters less than 100 nanometers. They have a large surface area relative to their size and high catalytic activity . The exact physical and chemical properties of zinc oxide nanoparticles depend on the different ways they are synthesized .
Zinc is a strong reducing agent with a standard redox potential of −0.76 V. Pure zinc tarnishes rapidly in air, rapidly forming a passive layer. The composition of this layer can be complex, but one constituent is probably basic zinc carbonate, Zn 5 (OH) 6 CO 3. [8] The reaction of zinc with water is slowed by this passive layer.
Zinc oxide (ZnO) nanostructures are structures with at least one dimension on the nanometre scale, composed predominantly of zinc oxide. They may be combined with other composite substances to change the chemistry, structure or function of the nanostructures in order to be used in various technologies.
Sun Sensitive Mineral Sunscreen Lotion SPF 50 “This ultra lightweight lotion sunscreen uses mineral-only filters that can be used on both the face and the body,” says Joshua Zeichner, M.D., a ...
Have some (safe) fun in the sun with these dermatologist-approved zinc oxide sunscreens. Choose from zinc sunscreens for your face, body, babies, and more.
This page lists properties of several commonly used piezoelectric materials. Piezoelectric materials (PMs) can be broadly classified as either crystalline, ceramic, or polymeric. [ 1 ] The most commonly produced piezoelectric ceramics are lead zirconate titanate (PZT), barium titanate, and lead titanate.