Project: Preparation and Recrystallisation of Aspirin

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SINGAPORE POLYTECHNIC
SCHOOL OF CHEMICAL AND LIFE SCIENCES

Diploma in Applied Chemistry with Pharmaceutical Science

Organic Chemistry (CP4120/CP4502) Project Preparation and Recrystallisation of Aspirin.

AY2010/2011

Name: XXXX
Class: DACP 1B/02
Admin no.: P1234567

Table of Contents Page
List of illustration iii
Synopsis iv 1. Objective of experiment 1 2.
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Lastly, add an additional of cold water to the mixture and collect crude products by suction filtration. 2, we need to dissolve crude product in ethanol. Secondly, add hot distilled water to it and allow it to cool. Lastly, perform suction filtration, put crystal on watch glass, put into oven then desiccator. And Crystal will be obtained in the end of the experiment.

Overall, the experiment is successful. The percent yield and the melting point I had falls within the range of the theoretical results. The crystal has a light flaky appearance and it is white in colour. With a narrow range of melting point, it shows that my product do not contain much impurities.

1. OBJECTIVE OF EXPREIMENT

The objectives of this experiment are to conduct the preparation of aspirin and perform recrystallisation to purify the compound using suction filtration. Besides, this experiment also requires reinforcing the skill of determination melting point of recrystallised compound.

2. INTRODUCTION

2.1 Definition of aspirin.

“Aspirin is a white, crystalline compound, CH3COOC6H4COOH, derived from salicylic acid” and is commonly use in tablet form to relieve pain, reduce fever and inflammation. It is also use as an anti platelet agent (Yahoo! Inc, 2009). The chemical name of aspirin is acetylsalicylic acid (Aspirin.foundation 2010). It has analgesic, antipyretic, and anti-inflammatory

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