Difference between revisions of "Oxybenzone Oxidation"
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− | The oxidation of oxybenzone was attempted with a reaction of oxybenzone, | + | The oxidation of oxybenzone was attempted with a reaction of oxybenzone, dioxane, and potassium permanganate. |
− | + | ==Making the Samples For Chemical Oxidation== | |
− | ==Making the Samples For | ||
− | + | ==== 2 mM Oxybenzone Buffer Stock Solution ==== | |
− | + | Combined 50 mL of dioxane, 50 mL of pH 7 buffer solution, and 45.7 mg of oxybenzone in a bottle. Added the oxybenzone to the dioxane, and then added the buffer solution. | |
− | + | ==== Potassium Permanganate Stock Solutions ==== | |
− | + | 2mM Potassium Permanganate Stock Solution | |
+ | * Dissolved 0.0316 g of potassium permanganate in 100 mL of RO water. | ||
− | + | 4mM Potassium Permanganate Stock Solution | |
+ | * Dissolved 0.0632 g of potassium permanganate in 100 mL of RO water. | ||
− | + | 10mM Potassium Permanganate Stock Solution | |
+ | * Dissolved 0.158 g of potassium permanganate in 100 mL of RO water. | ||
− | + | 20mM Potassium Permanganate Stock Solution | |
+ | * Dissolved 0.316 g of potassium permanganate in 100 mL of RO water. | ||
− | + | ==== Preparing the final samples ==== | |
− | + | Added 5 mL of the oxybenzone buffer stock solution to a scintillation vial. Then added 5 mL of the 1 mM Potassium Permanganate Stock Solution to the same vial that contained the oxybenzone buffer solution. Mixed solution thoroughly. This vial now contained 1 mM oxybenzone solution and 1 mM potassium permanganate solution once dilution was accounted for. This process was repeated with the rest of the potassium permanganate solutions. | |
− | |||
− | + | {| class="wikitable" | |
+ | |- | ||
+ | ! g KMnO4 !! Concentration of Stock Solution KMnO4 (mM) !! Concentration of KMnO4 After Dilution (mM) !! Concentration of Oxybenzone After Dilution (mM) | ||
+ | |- | ||
+ | | 0.0316 || 2 || 1 || 1 | ||
+ | |- | ||
+ | | 0.0632 || 4 || 2 || 1 | ||
+ | |- | ||
+ | | 0.158|| 10 || 5 || 1 | ||
+ | |- | ||
+ | | 0.316 || 20 || 10 || 1 | ||
+ | |} | ||
− | + | ==Data== | |
− | + | [[File:oxyb.png|500px|thumb|left|Figure 1. Graph of oxybenzone dissolved in methanol.]] | |
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− | + | [[File:oxybenzone_021420_oxidation.jpg|600px|thumb|right|Figure 2. Graph depicting the decrease in oxybenzone as the concentration of potassium permanganate increases.]] | |
− | + | [[File:posterpicture_research.jpg|600px|thumb|left|Figure 3. Representation of the Oxidation of Oxybenzone and Oxidation Products.]] | |
− | [[File: |
Latest revision as of 20:16, 1 April 2020
The oxidation of oxybenzone was attempted with a reaction of oxybenzone, dioxane, and potassium permanganate.
Making the Samples For Chemical Oxidation
2 mM Oxybenzone Buffer Stock Solution
Combined 50 mL of dioxane, 50 mL of pH 7 buffer solution, and 45.7 mg of oxybenzone in a bottle. Added the oxybenzone to the dioxane, and then added the buffer solution.
Potassium Permanganate Stock Solutions
2mM Potassium Permanganate Stock Solution
- Dissolved 0.0316 g of potassium permanganate in 100 mL of RO water.
4mM Potassium Permanganate Stock Solution
- Dissolved 0.0632 g of potassium permanganate in 100 mL of RO water.
10mM Potassium Permanganate Stock Solution
- Dissolved 0.158 g of potassium permanganate in 100 mL of RO water.
20mM Potassium Permanganate Stock Solution
- Dissolved 0.316 g of potassium permanganate in 100 mL of RO water.
Preparing the final samples
Added 5 mL of the oxybenzone buffer stock solution to a scintillation vial. Then added 5 mL of the 1 mM Potassium Permanganate Stock Solution to the same vial that contained the oxybenzone buffer solution. Mixed solution thoroughly. This vial now contained 1 mM oxybenzone solution and 1 mM potassium permanganate solution once dilution was accounted for. This process was repeated with the rest of the potassium permanganate solutions.
g KMnO4 | Concentration of Stock Solution KMnO4 (mM) | Concentration of KMnO4 After Dilution (mM) | Concentration of Oxybenzone After Dilution (mM) |
---|---|---|---|
0.0316 | 2 | 1 | 1 |
0.0632 | 4 | 2 | 1 |
0.158 | 10 | 5 | 1 |
0.316 | 20 | 10 | 1 |