LOW COLOR AND LOW HAZE FORMULATIONS OF SODIUM O-PHENYLPHENATE

摘要

A color stable aqueous solution containing a relatively high concentration o f sodium o-phenylphenate is described where stabilizing components include an oxygen scavenger and a free radical scavenger. The aqueous solutions of NaOP P prepared according to the present invention exhibit an absorbance at 400 manometers of at most one-half the absorbance exhibited by untreated solutio ns after incubation for 72 hours at 44 ~C and 4 hours under ultraviolet light. The aqueous solution is useful as a concentrate that can be diluted to a desirable antimicrobial concentration level prior to application.