Back to results
US 4,790,950 AGranted
Aqueous alkali metal halogenite compositions containing a colorant stabilized by NH.sub.4 OH
AssigneeThe Drackett Company
InventorRichard S. Hutchings
Life of this patent
Estimating the term…
Abstract
Aqueous cleaner compositions containing an alkali metal halogenite, for example, NaClO.sub.2 ; a stabilizable colorant; and a stabilizing amount of a stabilizer compound which is an ammonium hydroxide. The preferred embodiment further includes an anionic or anionic fluorocarbon surfactant.
Claims20
An aqueous, alkaline cleaning composition comprising on a weight basis about 0.5 to about 5% of an alkali metal halogenite;
- from about 0.01 to about 3% of a dye normally chemically incompatible with said halogenite in aqueous media, and a stabilizer which is ammonium hydroxide, said stabilizer being present in the composition in an amount effective to stabilize the composition as evidenced by a substantial absence of chlorine dioxide in the composition.
An aqueous, alkaline cleaning composition comprising on a weight basis from about 0.5 to about 5% sodium chlorite;
- from about 0.01 to about 3% of a stabilizable dye, said dye being normally chemically incompatible with said sodium chlorite in said aqueous composition, and a stabilizer which is ammonium hydroxide, said stabilizer being present in the composition in an amount effective to stabilize the composition as evidenced by the substantial absence of chlorine dioxide therein and a dye half-life of at least about two weeks.
Dependencies are inferred from the claim text.