Experiment: Extracting Aspirin or caffiene from the BC powder
Lab partner:
Date: 09/06/2022
Purpose: In this experiment, we will use BC powder to extract aspirin, caffeine, or salicylamide. Each chemical needs to be extracted using either an acidic or a basic solution We will utilize liquid-to-liquid extraction and vacuum filtration to separate each solution compound in this experiment's lab. We are also measuring the final product's melting point. Finally, we are comparing the amount mentioned on the packet with the amount we actually extracted for this experiment using percent recovery.
1 Notebook:
Overall Reaction: Figure 1: Aspirin deprotonation by Sodium bicarbonate
Figure 2: Apparatus for Extraction
Figure 3: Apparatus for Vacuum Filtration
Tailor 1
aratory funne
nring
erflask
Table 1: SDS and Chemical Information
Compound Nomenclature
Melting Waste/Disposal Point (C)
Structure
Safety Precautions
136-140 Down the sink C Combustible Dust Acute oral toxicity, do not digest with plenty of large amounts water Wash face, hands and any exposed skin thoroughly after handling
Aspirin
(Acetylsalicylic Acid)
234-236 C
Down the sink Acute oral toxicity, do not digest with plenty of large amounts water Wash face, hands and any exposed skin thoroughly after handling
Caffeine
138-142 'C
Non-
Acute oral toxicity, skin/eye irritation Wash face, hands and any exposed halogenated skin thoroughly after handling waste container Wear protective gloves/protective clothing/eye protection
Salicylamide
HO HzN
Tailor 2
Down the sink Causes eye and skin irritation. May with plenty of cause respiratory tract irritation. water
Not needed
Sodium Bicarbonate
HO
Not needed
Non-
halogenated waste container
Diethyl Ether
Flammable liquid and vapor, do not swallow, eye irritation, may cause drowsiness
Not Needed Down the sink with plenty of water
Hydrochloric Acid
HCI
May cause skin burns and eye damage May cause respiratory irritation
Procedure:
Data/Observations:
1. Record the amount of aspirin and caffeine in BC powder. 2. Dissolve 2 packets of BC Powder in 50 mL flask with 40 mL diethyl Ether.
(1) 1.69g of aspirin and 0.13g of caffiene per 2 packets of BC powder. (2) 2.357g of BC powder. Smells very strong like rubbing alcohol. It looks white and cloudy with white solid settled at the bottom.
3. Move the solution to a separatory funnel and add more diethyl ether to clean the flask out.
(3) It did not dissolve so we swirled for over 3 minutes and then poured directly.
Tailor