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US 12,677,835 B2Granted
Stable chlorinated alkaline products
AssigneeEcolab USA Inc.
InventorsVirginie Aristide Maas, Matthias Schmitz, Anja Patten, Michael Schneider, Ralf Krack
Life of this patent
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Abstract
The present disclosure relates to concentrated, alkaline, hypochlorite compositions with a magnesium salt. The disclosed compositions have improved stability and can be used for cleaning, bleaching, or as an antimicrobial composition.
Claims36
A concentrated, chlorinated, alkaline composition comprising:
- a. from about 1 wt-% to about 15 wt-% sodium hypochlorite;
- b. from about 7 wt-% to about 30 wt-% alkali metal hydroxide;
- c. from about 2 ppm to about 9 ppm of a magnesium ion;
- and
- d. from about 55 wt-% to about 85 wt-% water,
- wherein the magnesium ion is part of a magnesium salt selected from the group consisting of magnesium chloride anhydrous, magnesium chloride hexahydrate, magnesium oxide, magnesium carbonate, magnesium stearate, trimagnesium dicitrate, magnesium sulfate heptahydrate, and mixtures thereof;
- and wherein the composition is free of visible black particles and metal oxides after 3 months.
4 more elements
A chlorinated, alkaline, use composition comprising:
- a. about 0.1 to about 10% of a concentrated composition comprising:
- i. from about 0.1 wt-% to about 10 wt-% sodium hypochlorite;
- ii. from about 7 wt-% to about 30 wt-% alkali metal hydroxide;
- iii. from about 2 ppm to about 9 ppm of a magnesium ion;
- iv. from about 55 wt-% to about 85 wt-% water;
- and
- b. 90 to 99.9% water,
- wherein the magnesium ion is part of a magnesium salt selected from the group consisting of magnesium chloride anhydrous, magnesium chloride hexahydrate, magnesium oxide, magnesium carbonate, magnesium stearate, trimagnesium dicitrate, magnesium sulfate heptahydrate, and mixtures thereof;
- and wherein the concentrated composition is free of visible black and, metal oxides after 3 months.
6 more elements
A method of reducing microorganisms, the method comprising:
- diluting a concentrate composition with water to form a use solution, the concentrate composition comprising:
- a. from about 1 wt-% to about 15 wt-% sodium hypochlorite;
- b. from about 7 wt-% to about 30 wt-% alkali metal hydroxide;
- c. from about 2 ppm to about 9 ppm of a magnesium ion;
- and
- d. from about 55 wt-% to about 85 wt-% water,
- wherein the magnesium ion is part of a magnesium salt selected from the group consisting of magnesium chloride anhydrous, magnesium chloride hexahydrate, magnesium oxide, magnesium carbonate, magnesium stearate, trimagnesium dicitrate, magnesium sulfate heptahydrate, and mixtures thereof;
- and wherein the concentrate composition is free of visible black particles and metal oxides after 3 months;
- and
- applying the use solution to a hard surface, a soft surface, or a liquid.
7 more elements
A method of stabilizing a concentrated, chlorinated, alkaline composition comprising:
- adding a magnesium salt to the concentrated chlorinated, alkaline composition to form a concentrate composition comprising:
- a. from about 1 wt-% to about 15 wt-% sodium hypochlorite;
- b. from about 7 wt-% to about 30 wt-% alkali metal hydroxide;
- c. from about 3 ppm to about 9 ppm of a magnesium ion;
- and
- d. from about 70 wt-% to about 85 wt-% water,
- wherein the magnesium ion is part of a magnesium salt selected from the group consisting of magnesium chloride anhydrous, magnesium chloride hexahydrate, magnesium oxide, magnesium carbonate, magnesium stearate, trimagnesium dicitrate, magnesium sulfate heptahydrate, and mixtures thereof;
- and wherein the concentrate composition is free of visible black particles and metal oxides after 3 months.
5 more elements
Dependencies are inferred from the claim text.