But in all seriousness… I suppose I like using a thing called a rotary evaporator, basically it helps to remove any solvents or chemicals that have a low boiling point from your product. Its when you know exactly what your molecule looks like and what colour it is 🙂 they tend to turn from colourless to yellow, white or random colours like blue… and sometimes they form a really sticky gel which is both amazing but annoying to get out of the flask 😛
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