Recrystallization: Choosing Solvent & Inducing Crystallization

Пікірлер: 14

  • @YouMockMe
    @YouMockMe2 жыл бұрын

    Good video.... any day I learn something is a good day!

  • @hannahfay59
    @hannahfay592 жыл бұрын

    Your amazing....

  • @prakashbishnoi6593
    @prakashbishnoi659328 күн бұрын

    Very good explanation But if reactant and product both solid which solvent select for recrystallization and how to salect

  • @PyroRob69
    @PyroRob697 ай бұрын

    Since you are choosing a solvent, which solvent should I use to dissolve and recrystalize sodium hydroxide with?

  • @fieldguide2chemistry

    @fieldguide2chemistry

    7 ай бұрын

    Figuring out a good recrystallizing solvent may take trial an error not only testing out different solvents (and solvent mixtures) but also testing out different concentrations. While sodium hydroxide is very soluble in water, one can recrystallize NaOH in water at high concentrations such as 60 grams NaOH in 100 mL of water. The purity may be good but the yield may be low. I would also explore alcohols such as ethanol and isopropanol which my require less concentrated solutions and result in higher yields. Two other solvents I would try would be acetonitrile and ethyl acetate. In both cases heating might be better done with a reflux set-up rather than heating on a hot plate leading to a lot of evaporation

  • @PyroRob69

    @PyroRob69

    7 ай бұрын

    @@fieldguide2chemistry Thanks for responding. I looked up several solubility tables and they showed that non-polar solvents would be best but then do I want the end product polluted with something like acetone or dimethylether? What I am looking at is trying to clean up hardware store sodium hydroxide. I saw due to it's solubility, it would be difficult to settle out the end product, but since I don't know what the contaminants are, I have to try to pull one or the other out.

  • @DEESKI2000
    @DEESKI20002 жыл бұрын

    The KOH get rid the resin. KOH not soluble in acetone

  • @barrontrump3943
    @barrontrump39432 жыл бұрын

    What is this breaking bad?

  • @ali_rasa
    @ali_rasaАй бұрын

    Hi dear plz help me Acetone+hcl+h2so4 Help me make ciristal?

  • @sekayjr176
    @sekayjr1763 жыл бұрын

    Halo how are you How mix |

  • @FosterChild

    @FosterChild

    Жыл бұрын

    😵

  • @DEESKI2000
    @DEESKI20002 жыл бұрын

    It appears if it were an amine the anologue would be. Ugh 😫 😮😯😯

  • @tiptop1681
    @tiptop16813 ай бұрын

    Whats the best method for meth? Come on smarty pants, tell us that.

  • @excitedbox5705
    @excitedbox57052 жыл бұрын

    has nothing to do with choosing a solvent.