Aspirin Synthesis Lab
Starting with the weight of .198 g of salicylic acid, the moles of the reactant was determined to be 1.43 x 10-3, as shown in Equation 3. The purified aspirin product was a
white powder that had a weight of .140 g. The number of moles of the purified aspirin product after extraction was 7.77 x 10-4 as shown in Equation 4. These two moles calculated a chemical yield of 54.3% as shown in Equation 5.
The melting point of the pure aspirin product was ranged at 117.8-125.2C as shown in
Table 1.
An infrared spectrum for the pure aspirin from the synthesis was taken by using crushed crystals, Figure 1. This spectrum was shown with different absorption bands corresponded with the functional groups of aspirin which was observed at frequencies > 1500 cm-1. These infrared frequencies were shown in Table 2.
An infrared spectrum of an authentic aspirin was used to distinguish how authentic the infrared spectrum from the synthesis was shown in Figure 2
In this lab, aspirin was synthesized from salicylic acid in a process called chemical synthesis, Equation 6. This equation is the simple form of how salicylic acid is made and how acetylsalicylic acid or aspirin is created. The first step is to break the reaction. In the reactant, the –OH bond in salicylic acid and in the reagent, the C-O bond, both had to be broken. Once broken, new bonds were …show more content…
Comparing the infrared spectrum with the authentic infrared spectrum, Figure 2, shows that the product aspirin contains benzene ring at 1604.86 cm-1, a ketone functional group at 1677.47 cm-1, an anhydride functional group at 1750.32 cm-1, a carboxylic acid functional group at 3236.09 cm-1. The functional –OH is classified in the aspirin product infrared spectrum but do the fact that it is really wide ranging from 3600 cm-1 through 2500 cm-1, there could have been excess amount of alcohol functional because of the excess amount of
white powder that had a weight of .140 g. The number of moles of the purified aspirin product after extraction was 7.77 x 10-4 as shown in Equation 4. These two moles calculated a chemical yield of 54.3% as shown in Equation 5.
The melting point of the pure aspirin product was ranged at 117.8-125.2C as shown in
Table 1.
An infrared spectrum for the pure aspirin from the synthesis was taken by using crushed crystals, Figure 1. This spectrum was shown with different absorption bands corresponded with the functional groups of aspirin which was observed at frequencies > 1500 cm-1. These infrared frequencies were shown in Table 2.
An infrared spectrum of an authentic aspirin was used to distinguish how authentic the infrared spectrum from the synthesis was shown in Figure 2
In this lab, aspirin was synthesized from salicylic acid in a process called chemical synthesis, Equation 6. This equation is the simple form of how salicylic acid is made and how acetylsalicylic acid or aspirin is created. The first step is to break the reaction. In the reactant, the –OH bond in salicylic acid and in the reagent, the C-O bond, both had to be broken. Once broken, new bonds were …show more content…
Comparing the infrared spectrum with the authentic infrared spectrum, Figure 2, shows that the product aspirin contains benzene ring at 1604.86 cm-1, a ketone functional group at 1677.47 cm-1, an anhydride functional group at 1750.32 cm-1, a carboxylic acid functional group at 3236.09 cm-1. The functional –OH is classified in the aspirin product infrared spectrum but do the fact that it is really wide ranging from 3600 cm-1 through 2500 cm-1, there could have been excess amount of alcohol functional because of the excess amount of