Difference Between Benzoic Acid And Isolation

Observations or reactions:
Separation of the basic component:
When 2ml of 3M HCl was added to the mixture of Benzoic acid, Ethyl 4-aminobenzoate, 9-Fluorenone, diethyl ether, two layers were created, an organic yellow top layer and a clear aqueous bottom layer. The clear layer (basic layer) was extracted and placed into a container where 6M NaOH was add to the solution. The addition of NaOH made the solution basic, and created white flakes in the solution. The white flakes were separated by placing them into a Hirsh funnel filtration, the sold flakes were pure ethyl 4-aminobenzoate. After a week the powder was weighted using analytical balances melted with a mel temp.
Isolation of ethyl-4-Aminobenzote:
From the first step, adding 2ml of 3M HCl to the mixture of Benzoic acid, Ethyl 4-aminobenzoate, 9-Fluorenone, diethyl ether, two layers were created, an organic yellow top layer and a clear aqueous bottom layer. The top organic layer was then reacted with 2ml of 3M NaOH, which created another yellow top layer and clear
…show more content…
If the substances were contaminated at the start. If the substances were impure it would have decreased the percent recovery for each compound. Another source of error could have occurred when the experimenter was extracting the aqueous solution from the organic compound. If some of the organic solution was taken out with the aqueous solution it would have caused there to be impurities in the other solutions (decreasing their melting points) and it would have lowered the percent recovery in the organic solution. Additionally another error that could have attributed to a lower percent recovery was if the experimenter lost some of the solid while transferring it to the scales. If some of the solid was lost, it would have caused there to be a decrease in the amount

Related Documents