extraction

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    Extracting Caffeine from Sorbitol

    Hello everyone, im kind of new to this forum. i have this powder, in this powder there's sorbitol and caffeine mixed together, i have been trying to find a way to extract the caffeine from the sorbitol. Do you guys have any recommendations on how i could do this ?
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    Extraction with DCM

    Hi can anyone explain how DCM would be used to extract an organic from an aqueous layer. And what actually happens ! I'm following notes of a reaction, there are 2 distinct layers so can't see how the DCM makes the extraction more effective! Unless I suppose the DCM was removing something from...
  3. M

    Extraction of heavy metals from plant residue.

    I've been working on a practical which is basically about extraction/precipitation of PbO from harvested polluted plants. However, I haven't been able to derive a good procedure for this. Anyone with a useful input?
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    Shell Dye Extraction

    Hello everyone, I am a student at Stanislaus State University and I have a grand experiment due by tomorrow morning! My partner and I have been researching on how to extract dye from mussel seashells but to no avail. What we do know: we need to use either vinegar or hcl to dissolve the caco3...
  5. R

    shell dye extraction!!!

    Hello everyone, I am a student at Stanislaus State University and I have a grand experiment due by tomorrow morning! My partner and I have been researching on how to extract dye from mussel seashells but to no avail. What we do know: we need to use either vinegar or hcl to dissolve the caco3...
  6. T

    Newbie attempt at iodine extraction

    Hello all! I was recently exposed to the world of chemistry. Dont ask. Where I'm from education isn't exactly the best available. Either way I am excited and awestruck at the possibilities . I may have gotten myself in a pickle. Here's What I did. I am attempting to create Nitrogen...
  7. P

    Organic chemsitry Lab: Separation and Extraction

    The distribution coefficient KD (D is subscript) for a compound , A, between diethyl ether and water is 5 i.e. Cether/Cwater = 5 (The ether and water is a subscript in this eqn.). Calculate the mass of A that is removed from a solution containing 50 mg of A in 50cm^3 of water by extracting with...