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Lab Aspirin (acetylsalicylic Acid)

Autor:   •  September 6, 2011  •  Essay  •  318 Words (2 Pages)  •  3,111 Views

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Test 1

17.4 with filter and crystals and funnel 14.98 FAIL

Test 2

14.5 filter and funnel 18.93 with all (crude mass) 4.43g/2 = 2.215

Recrystallized mass was 15.81 1.31/2 = .655

Theory Yield 2.6122825

Actual yield = recrystalized is 2.215

Percent yield 84.79174821 percent

Lab Report 1

A Introduction

Lab 8 : Aspirin (Acetylsalicylic acid)

Our goal for this lab is to dive dep into what analgesics are and how they're made. Asprin is an analgesic and it does have some side effects. It an cause gastric problems. Buffering does not reduce the effect of acid. It can cause "Reyes Syndrome", brain disorder for some persons who are under 18 years of age, and also effects blood platelets and causes a blood clotting problem.

A few techniques that we'll be utilizing for this experiment are phenol testing, vacuum filtration, recrystallization, and melting point which provides analytical purity data about our sample. We will also be measuring the volume and weight and using different heating and cooling methods.

A compound we'll be using is the phenol, or aromatic alcohol and how it reacts with teh anhydride to form an ester. We will also use an acid catalyst H2SO4 and note on the purpose of the enzyme.

B. Results and discussion:

1. This reaction is an acid catalyzed acetylation reaction. H2SO4 is the acid catalyst.


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