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.
The iodine reagent used for the starch test is usually prepared by dissolving iodine in water, after potassium iodide has been added to improve iodine's solubility. The resulting compound is a triiodide ion complex that has the ability to produce the intense blue coloration.