Stable chlorinated alkaline products
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.
1 . 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.
2 . The composition of claim 1 , further comprising an additional material selected from the group consisting of a surfactant, a chelating agent, a thickening agent, a gelling agent, a foaming agent, a sequestering agent, and mixtures thereof.
3 . The composition of claim 1 , wherein the composition has a viscosity of less than 100 cps, using a Brookfield viscometer, with spindle 1, at 200 rpm, at 20° C.
4 . The composition of claim 1 , wherein the magnesium salt is selected from the group consisting of magnesium oxide, magnesium chloride anhydrous, and magnesium chloride hexahydrate.
5 . The composition of claim 1 , wherein when the magnesium salt is magnesium chloride hexahydrate, the composition is free of precipitates for 3 months.
6 . The composition of claim 1 , wherein the composition has a pH of 11 to 13.
7 . 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.
8 . The composition of claim 7 , further comprising an additional material selected from the group consisting of a surfactant, a chelating agent, a thickening agent, a gelling agent, a foaming agent, a sequestering agent, and mixtures thereof.
9 . The composition of claim 7 , wherein the concentrated composition has a viscosity of less than 100 cps, using a Brookfield viscometer, with spindle 1, at 200 rpm, at 20° C.
10 . The composition of claim 7 , wherein the magnesium salt is selected from the group consisting of magnesium oxide, magnesium chloride anhydrous, and magnesium chloride hexahydrate.
11 . The composition of claim 7 , wherein when the magnesium salt is magnesium chloride hexahydrate, the composition is free of precipitates for 3 months.
12 . The composition of claim 7 , wherein the concentrated composition has a pH of 11 to 13.
13 . 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.
14 . The method of claim 13 , wherein the concentrate composition further comprises an additional material selected from the group consisting of a surfactant, a chelating agent, a thickening agent, a gelling agent, a foaming agent, a sequestering agent, and mixtures thereof.
15 . The method of claim 13 , wherein the concentrate composition has a viscosity of less than 100 cps, using a Brookfield viscometer, with spindle 1, at 200 rpm, at 20° C.
16 . The method of claim 13 , wherein when the magnesium salt is magnesium chloride hexahydrate, the composition is free of precipitates after 3 months.
17 . The composition of claim 13 , wherein the concentrate composition has a pH of 11 to 13.
18 . The method of claim 13 , wherein the use solution comprises about 0.1% to about 10% of the concentrate composition after dilution.
19 . The method of claim 13 , wherein the use solution is applied by spraying, wiping, misting, foaming, fogging, mopping, squirting, flooding, or as part of a clean-in-place program.
20 . The method of claim 13 , wherein the hard surface is selected from the group consisting of tanks, pipes, mixers, walls, ceilings, tables, countertops, floors, drains, knives, saws, instruments, tools, worktables, conveyor belts, trucks, tanker cars, train cars, clean-in-place equipment, animal stalls, animal crates, produce crates, displace cases, surfaces in grocery stores, surfaces in butcher shops, surfaces in childcare facilities, surfaces in long term care facilities, and combinations thereof.
21 . The method of claim 13 , wherein the soft surface is selected from the group consisting of textiles, laundry, upholstery, drapery, carpet, and combinations thereof.
22 . The method of claim 13 , wherein the liquid is selected from the group consisting of swimming pools, hot tubs, cooling tower water, drinking water, food and beverage processing water, and combinations thereof.
23 . The method of claim 13 , wherein the use solution contacts the hard surface, the soft surface, or the liquid for a period of time of 10 seconds to 30 minutes.
24 . 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.
25 . The method of claim 24 , wherein the concentrate composition further comprises an additional material selected from the group consisting of a surfactant, a chelating agent, a thickening agent, a gelling agent, a foaming agent, a sequestering agent, and mixtures thereof.
26 . The method of claim 24 , wherein the concentrate composition has a viscosity of less than 100 cps, using a Brookfield viscometer, with spindle 1, at 200 rpm, at 20° C.
27 . The method of claim 24 , wherein when the magnesium salt is magnesium chloride hexahydrate, the composition is free of precipitates after 3 months.
28 . The method of claim 24 , wherein the concentrate composition has a pH of 11 to 13.
29 . The method of claim 24 , further comprising diluting the concentrate composition to form a use solution.
30 . The method of claim 29 , wherein the use solution comprises about 0.1% to about 10% of the concentrate composition after dilution.
31 . The method of claim 29 , wherein the use solution is applied by spraying, wiping, misting, foaming, fogging, mopping, squirting, flooding, or as part of a clean-in-place program.
32 . The method of claim 29 , further comprising applying the use solution to a hard surface, a soft surface, or a liquid.
33 . The method of claim 32 , wherein the hard surface is selected from the group consisting of tanks, pipes, mixers, walls, ceilings, tables, countertops, floors, drains, knives, saws, instruments, tools, worktables, conveyor belts, trucks, tanker cars, train cars, clean-in-place equipment, animal stalls, animal crates, produce crates, displace cases, surfaces in grocery stores, surfaces in butcher shops, surfaces in childcare facilities, surfaces in long term care facilities, and combinations thereof.
34 . The method of claim 32 , wherein the soft surface is selected from the group consisting of textiles, laundry, upholstery, drapery, carpet, and combinations thereof.
35 . The method of claim 32 , wherein the liquid is selected from the group consisting of swimming pools, hot tubs, cooling tower water, drinking water, food and beverage processing water, and combinations thereof.
36 . The method of claim 32 , wherein the use solution contacts the hard surface, the soft surface, or the liquid for a period of time of 10 seconds to 30 minutes.