What color was produced with the FeCl3 and commercial aspirin?
purple
Iron (III) ion reacts with phenols to form a purple complex. Salicylic acid contains a phenol group, but acetylsalicylic acid does not. Therefore, if you add FeCl3 to an aspirin sample and you see a purple color, it means that there is still some salicylic acid present and the sample is impure.
What color is commercial aspirin?
light salmon
The product is often contaminated with salicylic acid. The result of the iron(III) chloride test is: salicylic acid (dark purple), prepared aspirin (dark purple), and commercial aspirin (light salmon).
What Colour is acetylsalicylic acid?
Colorless to white, crystalline powder.
Does aspirin give ferric chloride test?
If salicylates are present, the solution changes to a brown/purple color. Positive results with the urine ferric chloride test only indicate that a salicylate is present; however, even very small amounts of a salicylate, such as a single ingested aspirin tablet, can give a positive test result.
How can you tell if aspirin is pure?
Because today’s aspirin is mass produced in tablet form, Spectrophotometers are a reliable and economical way to keep the purity of Aspirin consistent throughout the manufacturing process. The purity and amount of acetylsalicylic acid in aspirin can be measured using a Visual Spectrophotometer.
Is commercial aspirin pure?
The purity of acetylsalicylic acid was determined by melting point. The melting point range for the acetylsalicylic acid obtained is 144°C-172°C, it is because it contains impurities. The theoretical yield of aspirin is 2.628g, but the actual yield of aspirin obtained is 0.8953g.
What is the common chemical name of aspirin?
The Chemistry of Aspirin (acetylsalicylic acid) Aspirin is prepared by chemical synthesis from salicylic acid, through acetylation with acetic anhydride. The molecular weight of aspirin is 180.16g/mol.
Why is ferric salicylate purple?
Deep purple colored solution was obtained after dissolving FeCl3·6H2O in ethanol solution of C6H4OHCOOH. Changing the color is testified indirectly about the formation of the complex compound between iron(III) salt and salicylic acid.
Does aspirin have a phenol group?
No, because the aspirin does not have a phenol group. The ferric chloride gives a violet color with any molecule possessing a phenol group.