Nigel Baldwin | Preparation of aspirin Part 4 Purity and Yield VID 1593481700584 @nigelbaldwin3184 | Uploaded June 2020 | Updated October 2024, 12 hours ago.
High School Chemistry
In which a sample of aspirin is subjected to thin layer chromatography and compared to a sample of commercial aspirin eluted on the same plate.
The recrystallised aspirin is also weighed so that a percentage yield for the experiment can be calculated.
3g of 2-hydroxybenzoic acid was treated with an excess ethanoic anhydride to form 2-acetoxybenzoic acid.
2-acetoxybenzoic acid is also known as aspirin.
0.95g of aspirin was produced.
What is the percentage yield?
Safety
Always wear u.v. absorbing goggles, gloves and a laboratory coat when using short wavelength u.v. lamps.
High School Chemistry
In which a sample of aspirin is subjected to thin layer chromatography and compared to a sample of commercial aspirin eluted on the same plate.
The recrystallised aspirin is also weighed so that a percentage yield for the experiment can be calculated.
3g of 2-hydroxybenzoic acid was treated with an excess ethanoic anhydride to form 2-acetoxybenzoic acid.
2-acetoxybenzoic acid is also known as aspirin.
0.95g of aspirin was produced.
What is the percentage yield?
Safety
Always wear u.v. absorbing goggles, gloves and a laboratory coat when using short wavelength u.v. lamps.
