Filtration MIT Digital Lab Techniques Manual
[MUSIC PLAYING] PROFESSOR: Patience is a virtue. We all learned that when we were young. It'll come into play during our filtrations in this video. The process of filtration is used to separate your solid product from solvent or to remove impurities from your solution. This video will discuss three types of filtration, microscale filtration via Pasteur pipet, gravity filtration, and finally, vacuum filtration. First, let's address microscale filtration. We'll be using the Pasteur pipet to carry out this type of filtration. I bet you never thought you could have this much fun on such a small scale. Here's how to prepare your filter pipet. Here's a piece of cotton. Break off a small bit. Roll this into a small ball. The ball should be about the size of the top opening of the pipet. Place the cotton ball there. You can use either copper wire or another pipet to stuff down the cotton. With a few jabs, it should be nicely wedged in there. You want to firmly...