* Latest Climate Change News *
* Live EBAY Auctions *
* Internet Search Results *
Photochemical reaction | chemical reaction | Britannica.com
Photochemical reaction: Photochemical reaction, a chemical reaction initiated by the absorption of energy in the form of light. The consequence of molecules’ absorbing light is the creation of transient excited states whose chemical and physical properties differ greatly from the original molecules. These new chemical
Phosphorescence | physics | Britannica.com
Phosphorescence: Phosphorescence, emission of light from a substance exposed to radiation and persisting as an afterglow after the exciting radiation has been removed. Unlike fluorescence, in which the absorbed light is spontaneously emitted about 10-8 second after excitation, phosphorescence requires additional
ACE GLASS 7836-20 ACE Glass UV Photochemical Safety ...
Steel cabinet for safe operation of photochemical reaction equipment. Cabinet has welded seams, fully hinged door with lip to prevent light from escaping.
Photochromism - Wikipedia
Photochromism is the reversible transformation of a chemical species between two forms by the absorption of electromagnetic radiation (photoisomerization), where the two forms have different absorption spectra. Trivially, this can be described as a reversible change of colour upon exposure to light.
What is volatile organic compound (VOC)? definition and ...
2. Substance that will evaporate at temperature of use and which, by a photochemical reaction, will cause oxygen in the air to be converted into smog-promoting ozone under favorable climatic conditions. Commonly found in household, institutional, and industrial cleaning and maintenance products, and in building and finishing materials, VOCs are a significant contributor to sick building syndrome.
Sherwood Scientific Ltd
Sherwood Scientific Ltd is a Development and Manufacturing company producing a range of scientific instruments and apparatus with applications in many industries, education and research.
Photochemistry: Theoretical Concepts and Reaction Mechanisms
PHOTOCHEMISTRY Theoretical Concepts and Reaction Mechanisms Yuri V. Il'ichev Cordis Corporation, a Johnson and Johnson Company P.O. Box 776, Welsh and McKean Roads, Spring House, PA 19477-0776
Anti-bacterial Tiles Active: anti-bacterial floor and wall ...
ACTIVE Clean Air and Antibacterial Ceramic™ is obtained by the high-temperature application of micrometric particles of titanium dioxide (TiO2), which exploits photocatalysis activated by sunlight or artificial light, to allow the production of anti-pollutant, anti-bacterial technical ceramic slabs, for floor and wall coverings, that make an effective contribution to improving quality of life.