Copyright Ó 2000 Douglass F. Taber

 

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CHAPTER 3: RECRYSTALLIZATION

Data Report Sheet

A. Recrystallization of benzoic acid (microscale):

Starting weight of benzoic acid:

Recovered weight of benzoic acid:

Percent recovery:

B. Crystallization of impure acetanilide (macroscale):

Starting weight of acetanilide:

Recovered weight of recrystallized acetanilide:

Percent recovery:

Melting point of recrystallized acetanilide:


C. Preparation of acetanilide (macroscale):

Weight of aniline:

Moles of aniline:

Weight of acetic anhydride (1.08 g/mL):

Moles of acetic anhydride:

Limiting reagent is:

Moles of acetanilide expected:

Weight of acetanilide expected (theoretical yield):

Actual weight:

Percent yield:

Melting point of main batch:


D. Preparation of N-acetylanthranilic acid (macroscale):


Weight of anthranilic acid:

Moles of anthranilic acid:

Weight of acetic anhydride (1.08 g/mL):

Moles of acetic anhydride:

Limiting reagent is:

Moles of N-acetylanthranilic acid expected:

Weight of N-acetylanthranilic acid expected (theoretical yield):

Actual weight:

Percent yield:

Melting point: