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Diazonium Salts |
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diazonium salts [‚dī·ə′zō·nē·əm ′sȯls]
(organic chemistry) Compounds of the type R·X·N:N, where R represents an alkyl or aryl group and X represents an anion such as a halide. Diazonium Salts organic nitrogenous compounds of the general formula
Almost all diazonium salts are solids; they are colorless or yellowish and readily soluble in water. They are highly reactive and therefore cannot be stored for long periods in aqueous solutions or as solids. In an acidic medium, diazonium salts break down (slowly in the cold and rapidly upon heating) into oxy compounds, nitrogen, and acid:
In solid form diazonium salts are explosive; they are usually processed in solution or suspension without isolation. Stable diazonium boron fluorides, Nitrogen coupling, which is used to produce azo dyes, is the most important reaction of diazonium salts. Other reactions of diazonium salts, such as replacement of the diazo group with hydrogen, halogens, and other substances, are used in technology. REFERENCESVorozhtsov, N. N. Osnovy sinteza promezhutochnykh produktov i krasitelei, 4th ed. Moscow, 1955.Zollinger, H. Khimiia azokrasitelei. Leningrad, 1960. (Translated from German.) E. S. LISITSYNA Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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