Targeted performance of hypohalite systems thereof

摘要

This invention relates to extend the benefits of using hypochlorite compounds such as sodium hypochlorite to clean and disinfect articles while reducing or eliminating the side effects of treating an article with a strong oxidant material. The invention relates to a single step process involving mixing of precursor compositions of a suitable hypohalite or hypohalous acid with a solution of a reducing agent. Optionally a boiler may be present in either or both precursor compositions, such that at time of use such active hypohalous acid concentration, in the resulting aqueous mixture remains at a sufficient activity level to effect one or more desired benefits against a target substrate for a desired period of time. The oxidant is substantially consumed by reaction with the reducing agent after the time needed for achieving the desired benefit has passed.

主权项

1. A system for preparing a mixed composition for treatment of a surface, the mixed composition being formed from two initially separate composition parts, the system comprising:
a first chamber containing an oxidant first part comprising hypohalous acid or a hypohalite; and a second chamber containing a reductant second part comprising a nitrite, wherein the first and second chambers are initially separated from one another to prevent premature mixing of the first and second parts; wherein a molar ratio of the reductant to the oxidant is from 4:1 to 1.1:1; mixing the oxidant first part with the reductant second part to form a mixed composition, wherein the mixed composition has a pH from 7 to 11; wherein the mixed composition provides oxidizing benefits for a limited duration, the oxidant reacting with the reductant to reduce the oxidant concentration so as to prevent or minimize negative side effects associated with prolonged oxidant exposure longer than the limited duration.