A METHOD OF STABILIZING PACKAGED ACTIVE CHLORINE-CONTAINING SOLUTIONS AGAINST LIGHT-INDUCED DEGRADATION EMPLOYING ALKALINE HYPOCHLORITE SOLUTIONS IN COMBINATION WITH A CONTAINER

摘要

A method of reducing light-induced degradation of alkaline hypochlorite solutions when packaged in a container which is in whole or in part transparent or semi-transparent is described. The method involves incorporating at least one UV blocker and at least one tinting agent in at least the transparent or semi-transparent portion of the container, incorporating a UV blocker-tinting agent combination in a wrap which overlays at least the transparent or semi-transparent portion of the container or incorporating at least one UV blocker and at least one tinting agent in a container and/or a wrap overlaying the container. The container and wrap is composed of plastic such as polyethylene terephthalate, polyethylene, polypropylene, polystyrene, or polyvinyl chloride. The UV blocker is present in a concentration of about 0.01-2.0% by weight. The tinting agent is present in a concentration of about 0.01-2.0% by weight. The UV blocker-tinting agent combination serves to provide reduction in transmission of UV and visible light in a wavelength range of from about 300-450 nm. The alkaline hypochlorite solution preferably contains sodium hypochlorite. The invention is also directed to the alkaline hypochlorite solution in combination with a container for the solution, the container being in whole or in part transparent or semi-transparent and having at least one UV blocker-tinting agent combination present in relation thereto.