What is the purpose of combining nitric acid with sulfuric acid before starting a nitration reaction on an aromatic substrate? Sulfuric acid is necessary to react with nitric acid and form NO2+. Sulfuric acid is a necessary solvent. All aromatic compounds are soluble in sulfuric acid, but insoluble in nitric acid. Sulfuric acid plays no significant role. We are just following the procedure, which calls for sulfuric acid, even though it has no effect. Sulfuric acid is necessary to dilute the nitric acid. Concentrated nitric acid alone reacts too quickly and risks nitrating the substrate a second or third time.

What is the purpose of combining nitric acid with sulfuric acid before starting a nitration reaction on an aromatic substrate? Sulfuric acid is necessary to react with nitric acid and form NO2+. Sulfuric acid is a necessary solvent. All aromatic compounds are soluble in sulfuric acid, but insoluble in nitric acid. Sulfuric acid plays no significant role. We are just following the procedure, which calls for sulfuric acid, even though it has no effect. Sulfuric acid is necessary to dilute the nitric acid. Concentrated nitric acid alone reacts too quickly and risks nitrating the substrate a second or third time.

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter23: Amines

Section: Chapter Questions

Problem 23.67P

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		Sulfuric acid is necessary to react with nitric acid and form NO₂⁺.
		Sulfuric acid is a necessary solvent. All aromatic compounds are soluble in sulfuric acid, but insoluble in nitric acid.
		Sulfuric acid plays no significant role. We are just following the procedure, which calls for sulfuric acid, even though it has no effect.
		Sulfuric acid is necessary to dilute the nitric acid. Concentrated nitric acid alone reacts too quickly and risks nitrating the substrate a second or third time.