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bleaching
bleaching powder
bleaching powder white or nearly white powder that is usually a mixture of calcium chloride hypochlorite, CaCl(OCl); calcium hypochlorite, Ca(OCl) 2 ; and calcium chloride, CaCl 2 . Sometimes called chloride of lime, it can be prepared by reacting calcium hydroxide or slaked lime, Ca(OH) 2 , with chlorine gas, Cl 2 . It is used as a strong bleaching agent, as a disinfectant, and in making Javelle water . Bleaching powder was first produced in 1799 by Charles Tennant in Glasgow, Scotland.
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Bleaching can make corals more susceptible to disease.
News Wire article from: Asian News International; 10/5/2009; 700+ words
; ...ANI): Scientists have found that bleaching can make corals more susceptible...exacerbate the negative effects of bleaching. "Traditionally, scientists have attributed coral declines after mass bleaching events to the bleaching only...
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Bleaching 101: the basics of bleaching.(Back to Basics)
Magazine article from: Solutions - for People, Processes and Paper; 2/1/2004; ; 700+ words
; Bleaching is the process of making pulp white...the full spectrum of visible light. Bleaching also attacks some contaminants to reduce...or specs in the final sheet of paper. Bleaching processes consume significant capital...
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Coral bleaching on Johnston Atoll, central Pacific Ocean.
Magazine article from: The Biological Bulletin; 10/1/1997; ; 700+ words
; ...September 1996, extensive coral bleaching was noted on Johnston Atoll (JA...monitored the nature and extent of the bleaching, as well as the anomalous conditions of ocean temperature. Coral "bleaching," or the loss of zooxanthellae...
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Teeth bleaching
Newspaper article from: The Malay Mail; 9/22/2006; 511 words
; ...the underlying whiteness of teeth, bleaching agents actually make teeth whiter. The most common teeth bleaching agents are hydrogen peroxide and carbamide peroxide. The effectiveness of teeth bleaching depends on the colour of your teeth...
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Adsorption Isotherms for Bleaching Soybean Oil with Activated Attapulgite
Magazine article from: JAOCS, Journal of the American Oil Chemists' Society; 10/1/2008; ; 700+ words
; ...attapulgite was characterized and used as bleaching clay (adsorbent) for soybean oil. Adsorption isotherms for bleaching soybean oil were determined to investigate...adsorption. The heat evolved for oil bleaching increased as the levels of activated...
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 "Post-Tribune (IN)")
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Be careful when bleaching your teeth
Newspaper article from: Post-Tribune (IN); 6/4/2001; 686 words
; ...exposure to the process of tooth whitening (bleaching) is everywhere it seems. Television...to a dental "salon" or be prescribed bleaching by a dentist. We must ask ourselves...you have to understand the reason why bleaching works. Usually there are results with...
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Bleaching power: marine bacteria rout coral's colorful algae.
Magazine article from: Science News; 6/15/1996; ; 700+ words
; ...scientific concern, fascination with coral bleaching also stems from speculation that its...in water oxygenation-may also spur bleaching, however. "Whenever the symbiosis...entered the complicated story of coral bleaching. The bleaching of one species of coral...
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Stronger competitive power of bleaching powder in China.(Fine Chemicals)
Magazine article from: China Chemical Reporter; 11/16/2004; ; 700+ words
; The main ingredient in bleaching powder concentrate is calcium hypochlorite...on different production processes, bleaching powder concentrate also contains calcium...effective chlorine content in conventional bleaching powder is around 30%. Bleaching...
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Hot peroxide bleaching.
Magazine article from: Canadian Chemical News; 1/1/1998; ; 700+ words
; ...vital to maximization of the peroxide bleaching process. Hydrogen peroxide ([H.sub.2][O.sub.2]) bleaching of cellulosic fibers obtained from...hydrogen peroxide is used in the bleaching of high yield mechanical and chemi...
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Bleaching Products for Teeth Draw Questions From Federal Agency, Dental Group
Newspaper article from: The Washington Post; 8/30/1994; 700+ words
; ...companies to stop selling their teeth-bleaching products, saying they were new drugs...carbamide peroxide. Dentists have been bleaching teeth for decades with hydrogen peroxide, but the growing popularity of at-home bleaching spurred the action by the FDA, which...
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bleaching
Book article from: The Columbia Encyclopedia, Sixth Edition
bleaching process of whitening by chemicals or...Textiles have long been whitened by grass bleaching, a method virtually monopolized by the...commercial application of chlorine for bleaching, and in 1799 the Scottish chemist Charles...
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bleaching powder
Book article from: The Columbia Encyclopedia, Sixth Edition
bleaching powder white or nearly white powder that is usually...with chlorine gas, Cl 2 . It is used as a strong bleaching agent, as a disinfectant, and in making Javelle water . Bleaching powder was first produced in 1799 by Charles Tennant...
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Bleaches
Book article from: Chemistry: Foundations and Applications
...chemical action of chlorine, acting as an oxidizing bleaching agent, on the pigments in tomato juice. When...action of sodium borohydride acting as a reducing bleaching agent. A bleaching agent is a substance that can whiten or decolorize...
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Sodium Chlorite
Book article from: How Products Are Made
...It is also employed as a textile-bleaching and water anti-fouling agent. Additionally...electronics manufacturing industries as a bleaching agent. When put in an acid solution...trihalomethanes in drinking water. As a textile-bleaching agent, sodium chlorite is effective...
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Bleach
Book article from: How Products Are Made
...Middle Ages, the Dutch perfected the bleaching of fabrics in a process called crofting...material to the Netherlands for this bleaching. The practice quickly spread throughout Europe, and bleaching fields were documented in Great Britain...
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