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In Reply to: RE: Almost all the shade of black is derived from coke ergo heated coal which changes it's chemical structure... posted by Cleantimestream on March 07, 2017 at 01:02:25
Never mind the fact that much "black" coloring is obtained with "nigrosine" dye. Dyestuff chemistry is, very much, "a can of worms".
Carbon black (soot) used in tires would be a POOR choice in wire insulation. Think CF and CC resistors.
Eli D.
Follow Ups:
Right, Eli... coke comprises 65 to 70 percent of nigrosine dye.
Chemistry is one of the most fascinating fields {to me} that I never delved into.
The Mind has No Firewall~ U.S. Army War College.
The dye is what is known as an azo (N=N) compound. In the past, the analine and nitrobenzene starting materials would have been obtained from the byproducts of steel making coke manufacture. I expect that petroleum is currently used, as the starting point.
Eli D.
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