Chemlab11 - CHY 123 Synthesis of Aspirin Introduction...

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

View Full Document Right Arrow Icon
CHY 123 Synthesis of Aspirin Introduction Aspirin has been around for hundreds of years as a painkiller. It used to be made from an extract of the willow tree bark until the late 19 th century when its active ingredient, Acetylsalicylic acid¸ was isolated. Today Acetylsalicylic acid is synthetically formed by reacting salicylic acid and acetic anhydride. Procedures We gathered the needed chemicals and containers needed for the experiment. We then weighed out .4g of the reagent grade acetylsalicylic acid into a beaker, then added 10ml of the NaOH, and heated the solution. After heating it we transferred the remains to a 250ml volumetric flask. We added distilled water to the flask until it was full. From this solution we made four dilutions (5/100, 4/100, 3/100, 2/100) of the solution and tested them with the UV spectrometer. We then weighed out .1g of our dried synthesized aspirin, put it into a beaker, and dissolved the crystals with 25ml of the iron solution. We then put this into a volumetric flask and filled
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.

This lab report was uploaded on 04/18/2008 for the course CHY 123 taught by Professor Professor during the Fall '08 term at University of Maine Orono .

Page1 / 4

Chemlab11 - CHY 123 Synthesis of Aspirin Introduction...

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