Ifmaterials are transferred into other containers, the employer mustensure that these are labeled as well, unless they fall under theportable container exemption (paragraph f(7)). In terms of labelingsystems, you can choose to use the labels provided by your supplierson the containers.
Confidence votes 178. Iodine is often called a mordant when used in the gram stain. What its function is, is to form large crystals with the Crystal Violet dye used as the first stain.
Quick Answer. According to the University of Cincinnati, the starch in a potato cell reacts with iodine to show an outline of the cell's organelles, particularly the nucleus. Iodine leaves a purplish impression on the starch grains, allowing easy identification. Staining is a common practice within microbiology and other sciences.