ozone reactive chemical

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• Ozone — For other uses, see Ozone (disambiguation). Ozone …   Wikipedia

• ozone — ozonic /oh zon ik, oh zoh nik/, adj. /oh zohn, oh zohn /, n. a form of oxygen, O3, with a peculiar odor suggesting that of weak chlorine, produced when an electric spark or ultraviolet light is passed through air or oxygen. It is found in the… …   Universalium

• chemical industry — Introduction       complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives.       Although the chemical industry may be described simply as the industry that uses chemistry and… …   Universalium

• Ozone therapy — Ozone in the stratosphere deflects harmful solar radiation, but ground level ozone has well studied and cumulative deleterious health effects.[1][2] The use of ozone therapy is advocated as a form of alternative medicine but there is no… …   Wikipedia

• Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …   Wikipedia

• chemical element — Introduction also called  element,         any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.       This article considers the… …   Universalium

• chemical reaction — Any chemical process in which substances are changed into different ones, with different properties, as distinct from changing position or form (phase). Chemical reactions involve the rupture or rearrangement of the bonds holding atoms together… …   Universalium

• Chemical vapor deposition — DC plasma (violet) enhances the growth of carbon nanotubes in this laboratory scale PECVD apparatus. Chemical vapor deposition (CVD) is a chemical process used to produce high purity, high performance solid materials. The process is often used in …   Wikipedia

• Reactive-ion etching — Gravure ionique réactive La gravure ionique réactive ou gravure par ions réactifs très souvent appelée par son acronyme anglophone, RIE (pour Reactive Ion Etching), est une technique de gravure sèche des semi conducteurs. Il s agit d une… …   Wikipédia en Français

• Reactive Ion Etching — Gravure ionique réactive La gravure ionique réactive ou gravure par ions réactifs très souvent appelée par son acronyme anglophone, RIE (pour Reactive Ion Etching), est une technique de gravure sèche des semi conducteurs. Il s agit d une… …   Wikipédia en Français

• Gravure Ionique Réactive — La gravure ionique réactive ou gravure par ions réactifs très souvent appelée par son acronyme anglophone, RIE (pour Reactive Ion Etching), est une technique de gravure sèche des semi conducteurs. Il s agit d une technique similaire, dans la mise …   Wikipédia en Français