| abstract |
An oxidative dye solution comprises an indicating dye that has been reacted with a reducing agent. The pre-reacted dye when subjected to an oxidizing disinfection or sterilization agent such as peracetic acid or hydrogen peroxide under goes a visible color change and thus can serve as a chemical, process, or chemical integrator, indicator. The dyes include various azines, thiazines, and oxazines compounds and the reducing agents include alkali metal alkyloxides and alkaline earth metal alkyloxide compounds. |