azo dye - Hutchinson encyclopedia article about azo dye Printer Friendly
The Free Dictionary
1,027,758,174 visitors served.
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

azo dye

   Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.04 sec.

azo dye

Synthetic dye containing the azo group of two nitrogen atoms (NN) connecting aromatic ring compounds. Azo dyes are usually red, brown, or yellow, and make up about half the dyes produced. They are manufactured from aromatic amines.

The azo group arises from a characteristic sequence of two chemical reactions known as diazotization and azo coupling. Diazotization converts an amine (such as aniline) into a diazonium salt, which can then be coupled with another amine to form the azo compound.

The intense colours of azo dyes are due to an extended system of delocalized electrons which includes the azo group itself and the aromatic structures on both sides.
?Page tools
Printer friendly
Cite / link
 Email
Feedback
?Sign in SSL protected
Email:
Password:
Register

? Mentioned in ? References in periodicals archive
 
Samples S1 and S3, both of which use azo dye for the data layer, have higher error rates in both direct light exposure and extreme temperature/humidity testing.
Stability comparison of recordable optical discs--a study of error ... by Tang, Xiao / Journal of Research of the National Institute of Standards and Technology
The patented AZO dye features excellent thermal and optical properties for a wider power margin and increased sensitivity to laser light for high-speed recording.
Verbatim 1-16X DVD+R media sets the standard for reliability, ... by EDP Weekly's IT Monitor
6 Recording Layer Azo Dye Azo Dye Reflectivity 45-85% 45-85% Track Pitch 0.
Plain Talk About Recordable DVD by Clatterbuck, Tim / Computer Technology Review
More results
 
Hutchinson browser? ? Full browser
 
 
Hutchinson Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2008 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.. Terms of Use.