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.
Both Gram-negative and Gram-positive cells bind this initialpositive stain which forms large complexes inside the cell wall. After washing, a mordant, Gram's iodine, is added. Mordants increase the binding affinity of stains.Iodine binds with the crystal violet to form large CV-I 2 complexes within the cell wall.