Other
Organic chemistry practical report 1 synthesis of a sunscreen agent dibenzalacetone
- Course
- Institution
More than enough. Please change name and date due to plagiarism
[Show more]
Seller
Follow
tymozwakenberg
Reviews received
Content preview
Short report of experiment 1: Synthesis of a sunscreen agent, dibenzalacetoneName : Tymo Zwakenberg
S-number : 4326253
TA : Ali & Isabella
Date : 22-05-2023
Figure 1: Overview of the mechanism of the performed reaction.
Table 1: Overview of the used compounds during the experiment.
Compound g/mol g or mL mmol eq
NaOH 40 2.05 g 50
Ethanol 46.07 16 ml 283.39
Benzaldehyde 106.12 2 ml 19.68
Acetone 58.08 0.75 ml 10.21
Acetic acid 60.05 2 x 10 ml 174.69
dibenzalacetone 234.29
Introduction
In order to get acquainted with purification methods, a recrystallization of a synthesized
sunscreen agent is performed. As can be seen in figure 1, 2 benzaldehyde molecules and an
acetone molecule within the right solution could form a dibenzalacetone. In order to see
whether the reaction is performed in the right way, UV-VIS analysis is used to see if the
sunscreen agent actually protects against certain UV-lights (A & B).
Results and Discussion
Yield of crystals obtained after recrystallization
(milli)grams : 1.49
mmol : 6.36
Yield % : 62.34%
Melting point of obtained crystals : 108℃
Melting point of literature : 104-107℃ (sigmaaldrich), 110-111℃ (manual)
UV-VIS spectra analysis
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller tymozwakenberg. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.31. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78834 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now