Top topic this week
Back to FAQs
Related FAQs
Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
How to prepare p-nitrobenzoic acid from toluene?
Accepted Answer
Sure, here is how to prepare p-nitrobenzoic acid from toluene:
Materials:
* Toluene
* Nitric acid
* Sulfuric acid
* Water
Procedure:
1. In a three-necked flask add toluene, concentrated sulfuric acid, and concentrated nitric acid. The molar ratio of the three should be 1:1:1
2. Heat the mixture to 100 °C for 4 hours.
3. Then pour the mixture into ice water
4. Filter the precipitate of p-nitrobenzoic acid, wash it with water, and dry it.
5. Recrystallize the p-nitrobenzoic acid from boiling water.
The chemical equation for this reaction is:
C6H5CH3 + HNO3 + H2SO4 → C6H4(NO2)COOH + H2O
Yield:
The yield of this reaction is typically around 80%.
Uses:
* p-Nitrobenzoic acid is a useful intermediate in the synthesis of other organic compounds.
* It is also used as a preservative in food and beverages.
Articles you might like