Recrystallization and Melting Point Analysis

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Now that we have covered some important separation techniques, let's take a look at a purification technique. Sometimes a chemical reaction will produce a solid, which can precipitate from solution. But these crystals typically contain impurities from solution that were trapped in the lattice as it formed. After we isolate these crystals, we can purify them via recrystallization. This is where we dissolve them in a particular hot solvent that will then retain any impurities before cooling it down such that it can crystallize again. We will also learn how to assess the purity of our recrystallized product using melting point analysis. This is neat stuff! Visit Thermo Fischer Scientific for all your laboratory needs: https://www.thermofisher.com/lab-chemicals Follow Jamal Muhoza on social media: https://linktr.ee/dr_Jamal Watch the whole Chemistry Laboratory Techniques playlist: http://bit.ly/ProfDaveChemLab General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMath EMAIL► [email protected] PATREON► http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience! Amazon: https://amzn.to/2HtNp

Published 2022-12-05 · Watch on YouTube ↗
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