How to Purify Sulfur by Recrystallization with Xylenes

Описание: Here is my purification guide for sulfur by recrystallization with xylene, you will learn the how and the why in this video. See the chapters below if you need specific information.

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   • Timelapse - Recrystallization of Sulfur wi...  

🧪 Check out the links below if you need some basic glassware and equipment 🧪
Vevor 13pcs Distillation Set: https://amzn.to/4brsudD
Stonylab Heating Mantle 1000mL: https://amzn.to/4eZKXBb
Slendor Hotplate Stirrer: https://amzn.to/3S8eAGu

Note: These are some entry-level gear to kick-start your amateur chemistry journey.

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Chapters:
0:00 - Preview (Timelapse)
0:33 - Intro
0:45 - 0. Safety precautions and disclaimer
0:54 - 1. The purpose of this experiment
1:18 - 2. Measuring out the reagents
1:46 - 3. Adding sulfur to xylene with heating and stirring
2:44 - 4. Choice of reagents
3:40 - 5. Advantages of using xylene over toluene
4:20 - 6. Ideal solvent for recrystallization
4:59 - 7. Use of filtration in recrystallization
5:27 - 8. Tips and tricks for filtration
5:46 - 9. Different crystal forms and allotropes of sulfur
6:32 - 10. Repeat the experiment at a lower temperature
6:54 - 11. Cooling the solution to allow crystallization
7:29 - 12. Collect the product and calculate the yield
8:03 - 13. Bottle up the product

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References
1. Wermink, Wouter Nicolaas, Spinu, Dmitri and Versteeg, Geert Frederik. "Sulfur Solubilities in Toluene, o-Xylene, m-Xylene and p-Xylene at Temperatures Ranging from 303.15 K to 363.15 K" The Journal of Natural Gas Engineering, vol. 3, no. 2, 2018, pp. 71-95.

2. Jay, Sophie & Cézac, Pierre & Serin, Jean-Paul & Contamine, François & Martin, Catherine & Mercadier, Jacques. (2009). Solubility of Elemental Sulfur in Toluene between (267.15 and 313.15) K under Atmospheric Pressure. Journal of Chemical and Engineering Data - J CHEM ENG DATA. 54. 10.1021/je9002256.

3. Wang, R.; Shen, B.; Sun, H.; Zhao, J. Measurement and Correlation of the Solubilities of Sulfur s8 in 10 Solvents. Journal of Chemical & Engineering Data 2018, 63 (3), 553–558.

4. Ren, Y.; Shui, H.; Peng, C.; Liu, H.; Hu, Y. Solubility of Elemental Sulfur in Pure Organic Solvents and Organic Solvent–Ionic Liquid Mixtures from 293.15 to 353.15K. Fluid Phase Equilibria 2011, 312, 31–36. DOI:10.1016/j.fluid.2011.09.012.

5. Greenwood, N. N.; Earnshaw, A. Chapter 15.1.4 Allotropes of Sulfur. In Chemistry of the elements; Butterworth-Heinemann: Oxford, 2017; pp 652–660.

6. Wikipedia. Allotropes of Sulfur. (accessed Mar 16, 2023)

7. ‪@DougsLab‬ Recrystallization of Sulfur    • Recrystallization of Sulfur   (accessed Mar 16, 2023)

8. ‪@Thoisoi2‬ Growing Beautiful yellow Crystals of Sulfur! Cool Chemical Experiment!    • Growing Beautiful yellow Crystals of Sulfu...   (accessed Mar 16, 2023)

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