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dye
viologen dyes
viologen dyes (bipyridylium dyes) A group of organic compounds based on two linked pyridine rings and including certain agricultural herbicides, notably
Paraquat and
Diquat. These generally kill all nonwoody plants and are used as nonselective weedkillers. They act by interfering with electron transport in photosynthesis and by generating superoxide anions, which damage chloroplasts and other cell components. These herbicides are also highly toxic to animals, and their use is strictly controlled.
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Dyes, fabrics and the triple dye experiment.(hands on)(Report)
Magazine article from: Teaching Science; 12/22/2007; ; 700+ words
; ...in specific ways. The triple dye experiment takes a mixture of three classes of dyes and reacts it with a range of...fabric dyed with the triple dye and double dye mixtures. Other food dyes such as those used on 'Smarties...
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Direct dyes develop towards high-end varieties.
Magazine article from: China Chemical Reporter; 6/16/2005; ; 700+ words
; ...of forbidden direct dyes In July 1994 Germany published 118 dye varieties whose use...direct light-fast dyes. China has developed 28 D type direct mixed dye that can be used in...trisazo copper complex dye synthesized by benzidine...expansion Paparmaking dyes: Dyes commonly ...
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Dye-sublimation; photographic-quality printing finally becomes affordable. (Hardware Review) (comparison of eight dye-sublimation color printers for the Apple Macintosh) (Evaluation)
Magazine article from: Macworld; 5/1/1993; ; 700+ words
; ...the print medium; dyes permeate the surface...heated element in the dye-sub machine's...various colors. Dyes are transparent, so a dye-sub printer creates...also contributes to dye-sub's higher...paper absorbs the dyes, they diffuse...
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 "SouthtownStar (Chicago, IL)")
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Dye deserves slice of attention pie
Newspaper article from: SouthtownStar (Chicago, IL); 6/30/2008; 700+ words
; Jermaine Dye has to be the most unsung World Series MVP...MVP would enjoy Mike Ditka status. Shoot, Dye doesn't even enjoy Mark Grace status. On...Crede or even newcomer Nick Swisher than for Dye, who has joined forces with nondescript left...
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Dye and Pigment Manufacturers Focus on Ink Applications.
Magazine article from: Ink World; 1/1/2001; ; 700+ words
; ...develop new pigment and dye technologies. Two...Ciba combined its dyes and pigments operations...combining pigment and dye technologies. The...its production of dyes and ink pigments out...to make pigments in dye plants. In the research...bringing together the dyes and pigments ...
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Dye-transfer process about to die as Kodak decides to pull the plug
Newspaper article from: The Boston Globe; 7/25/1993; ; 700+ words
; ...woo them. A bonus of the dye-transfer prints were...dark storage, the aniline dyes in a dye-transfer print might...their complementary aniline dyes -- cyan, magenta and...base will become the final dye-transfer print. Through...
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Dye joins new team, pursues same dream.(Knight Ridder Newspapers)
Newspaper article from: Knight Ridder/Tribune News Service; 8/4/2001; ; 700+ words
; ...acquisition, yet right fielder Jermaine Dye already is making himself at home in a clubhouse...It is a little like coming home," Dye says, "but a lot has changed for me...10-month-old son stare back at him. Dye smiles. "This is what it's all about...
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Sensitising dyes in photography. (Colour Chemistry)
Magazine article from: Chemistry and Industry; 10/16/1989; ; 700+ words
; ...importance are complex dyes combining the structural...exemplified by the old Agfa dye, Rr 2632 (Fig 1...incorporated into cyanine dyes, remarkably few occur...monochrome films; the first dye of this type was synthesised...the other hand, similar dyes with a chain-ethyl substituent...
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Reactive dyes developed rapidly drastic increase in output and import. (Market Report).(Brief Article)
Magazine article from: China Chemical Reporter; 5/6/2002; 700+ words
; ...production of reactive dyes. Reactive dye has made a very rapid...development ability of reactive dyes in China is still lagging behind. 1 053 reactive dye varieties and 4 110 reactive...first place in various dyes. Reactive dye producers in China are...
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Nanoparticle dyes boost storage.
Magazine article from: TRN Newswire; 1/5/2004; 700+ words
; ...wavelength. Different dyes are activated and read...light. The microscopic dye particles could be used...containing a different dye. The researchers made...containing two and three dyes. Each dye is mixed with a different...
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Dyes and Pigments
Encyclopedia entry from: UXL Encyclopedia of Science
...especially water). Dyes are usually soluble...in water. Once a dye is dissolved in water...laboratory. That dye, mauve, was produced...showed chemists that dyes and pigments could...colorants. Applications Dyes can be applied to...is to dissolve the dye in water and then...
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Dyes
Book article from: Chemistry: Foundations and Applications
...Indigo is a vat dye, which means that...It and other vat dyes are insoluble in water...containing the reduced dye, which on leaving...blue are also vat dyes. Dyes, Industry...indigo. The other new dyes had no analogs in nature. In 1875 the dye chemist Otto N. Witt...
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dye
Book article from: The Columbia Encyclopedia, Sixth Edition
...being dipped in the dye (the dyes so used are consequently...Alizarin is a mordant dye and the color it gives...the mordant used. Dyes are classified also...Indians used natural dyes many centuries ago...probably the oldest dye in use, and Tyrian...
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Hair Dye
Book article from: How Products Are Made
...the advent of modern dyes. Indigo, known primarily as a fabric dye, could be combined...yielded brown hair dyes, and another hair dye known in antiquity...and feathers. To dye hair with p-phenylenediamine and related dyes, a weak solution...
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Tie-Dye
Book article from: Fashion, Costume, and Culture: Clothing, Headwear, Body Decorations, and Footwear through the Ages
...concerts became festivals of tie-dye, and those who brought and sold tie-dye clothing at the events became known as "dyes." After the Grateful Dead disbanded...wearing, selling, and exchanging tie-dye clothing. Tie-dye became a mainstream...
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