3.9 Modern Purification Methods

We discussed earlier some common methods of purification. In this screencast, we will discuss more methods of purification including the ones we will be using in school along with ones that are a little bit more high tech and more expensive. Earlier we discussed the process of filtration and of crystallization. We also talked about distillation for liquids with different boiling points. Now we are adding some more advanced forms of distillation including vacuum distillation (used for substances with high boiling points), and spinning ban distillation (for liquids with similar boiling points). There are also some more advanced types of chromatography. There is paper chromatography, used mostly in high schools, thin layer c