anti-solvent crystallization

Anti-solvent crystallization is a process used to produce specific solid particles from a liquid solution. It involves adding an anti-solvent— a liquid in which the desired substance is less soluble— to the solution. This reduces the overall solubility, causing the substance to come out of the solution and form crystals. The process helps control crystal size and purity, making it useful in pharmaceuticals and chemicals manufacturing. Essentially, it's a way to carefully trigger the solidification of a dissolved substance by introducing a second liquid that encourages crystal formation without excessive agitation or heating.