Idler + Kahrilas Aspirin

Idler + Kahrilas Aspirin - Introduction: Aspirin is a...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Introduction: Aspirin is a useful medicine that is used to relieve pain and reduce fevers. While this is common knowledge, most people don’t know the process behind how it is made, but that was a purpose of this lab. Aspirin is made through a process called esterification. Esterification occurs when a carboxylic acid and an alcohol combine in a reaction to produce an ester 1 . In this reaction, a water molecule breaks off and the remaining carboxylic acid and alcohol bond and produce an ester. Another goal of this lab is to synthesis flavor esters, known as Fischer esterification. Fischer esterification is the acid-catalyzed acyl substitution of a carboxylic acid with an alcohol to give an ester 2 . An ester is an organic functional group that forms many sweet smelling compounds, where the general chemical formula is R-CO-OR, that are responsible for the natural flavor and fragrance compounds 3 . Procedure: A. Synthesis of Aspirin First 1.007g of salicyclic acid was weighed and put in a large dry test tube. Next 3.5mL of acetic anhydride was added to the test tube. Four drops of concentrated (18M) sulfuric acid was added to the test tube and mixed with a stirring rod. While the test tube was left to react for ten minutes, 50mL of deionized water was put in an ice water bath. After the ten minutes the test tube was placed in the bath for five minutes, and then 5mL of cold deionized water was added. Once the water was added, the test tube was put back in the bath for fifteen minutes. During this
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

Idler + Kahrilas Aspirin - Introduction: Aspirin is a...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online