Is a colloid mill used anywhere in iodine production, or is that process purely chemical extraction and purification?

While iodine production itself relies on chemical extraction and purification steps, a colloid mill becomes relevant afterward when iodine is formulated into tinctures, ointments or solutions that require fine, even dispersion of iodine crystals or complexes throughout a carrier liquid. This ensures consistent potency and prevents sedimentation of undissolved particles in the finished preparation.