What type of dye is an Azo dye?
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Highlander is semi-retired from AB
ANSWERS: 2
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"Azo compounds refer to chemical compounds bearing the functional group R-N=N-R', in which R and R' can be either aryl or alkyl...Aromatic azo compounds (R = R' = aromatic) are usually stable and have vivid colours such as red, orange, and yellow. Therefore, they are used as dyes, which are called azo dyes." http://en.wikipedia.org/wiki/Azo_dye
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I found this for you: It is any of a large class of synthetic organic dyes that contain nitrogen as the azo group -N=N- as part of their molecular structures; more than half the commercial dyes belong to this class. Depending on other chemical features, these dyes fall into several categories defined by the fibres for which they have affinity or by the methods by which they are applied.
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