Essay Separation of Benzoic Acid and Acetanilide

1243 Words Mar 22nd, 2013 5 Pages
Chem 3100 Thursday 9am-1:45pm
Olumba Obu
Unknown #: 146 Fall-11
Organic Chemistry Midterm Report
13 October 2011

Table of Contents
Separation of Benzoic Acid and Acetanilide 3
Extraction and Purification of Caffeine from Tea 4
Extraction of Trimyristin from Nutmeg 5
Conversion of t-butanol to t-butyl chloride 6
Appendix
7 Calculations 8 Literature and Experimental Values of Benzoic Acid and Acetanilide 9 Experimental Caffeine IR 10 Literature Caffeine IR 11 Experimental Trimyristin IR 12 Literature Trimyristin IR 13 Experimental Tert- Butyl Chloride IR 14 Literature Tert-Butyl Chloride IR and RI 15 References

Separation of Benzoic Acid and Acetanilide
Introduction:
The
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Extraction of Trimyristin from Nutmeg
Introduction:
Seeds of plants are rich in triglycerides, the fatty acid esters of glycerol. Nutmeg’s triglycerides are mainly the glycerol ester of a single fatty acid which is called myristic acid. This ester, called trimyristin, represents the 20-25% dried weight of nutmeg (Wilcox & Wilcox, 120). The purpose of this lab is to isolate trimyristin from nutmeg by performing a simple solid-liquid extraction and to purify the trymyristin using the method of recrystallization.
Procedure:
Place 5 g of nutmeg and 50 mL of DCM into a 100 mL round bottom flask, and reflux the mixture for 30 minutes. Refer to p.120 (E) in Wilcox & Wilcox. Rotary evaporation will be used instead of steam distillation.
Data:
Mass of Nutmeg | 5.0127g | Mass of Crude Trimyristin | 2.3516 g | % Yield of Crude | 46.91 % | Mass of Pure Trimyristin | 0.3352 g | % Recovery from Recrystallization | 6.69% | Overall % Yield from Nutmeg | 10.5%(pure); 45.6%(crude+pure) |

Results/Discussion: The percent recovery from recystallization and the overall percent yield from nutmeg are extremely low due to the loss of trimyristin from filtration and the round bottom flask. The literature IR and the experiment IR are very similar, containing many of the same peaks; therefore, the purification of trimyristin was done successfully with a smaller than expected
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