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US 12,378,114 B2Granted
Chlorine dioxide composition having excellent long-term stability at room temperature and method for preparing same
AssigneeDyc Co., Ltd.
InventorJunho Park
Life of this patent
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Abstract
The present invention relates to a chlorine dioxide composition having excellent storage stability at room temperature and a method for preparing same and, more specifically, to a chlorine dioxide composition comprising an aqueous chlorine dioxide solution, chlorate, chlorite, a stabilizer containing boron and molybdenum, and a surfactant, and a method for preparing same.
Claims7
A chlorine dioxide composition, comprising:
- a chlorine dioxide aqueous solution, a chlorate, a chlorite, a surfactant and a stabilizer containing boron and molybdenum, wherein a change rate of the concentration of chlorine dioxide for 13 months is within 10%, as calculated by the following Formula (4):
- Long-term concentration change rate (%)={(A1−A2)÷A1}×100, [Formula (4)]
- in Formula (4), A1 is the maximum concentration value during storage at room temperature, and A2 is the minimum concentration value during storage at room temperature,
- wherein the composition has a pH value of pH 5 to 6,
- wherein the chlorate is in an amount of 0.05 to 1 wt. % wherein the chlorate is sodium chlorate in an amount of 0.1 to 0.8 wt. % with respect to 1 L of the chlorine dioxide aqueous solution containing 1 to 2000 mg/L chlorine dioxide,
- wherein the chlorite is in an amount of 0.2 to 2.0 wt. % wherein the chlorite is sodium chlorite in an amount of 0.5 to 1.8 wt. %, with respect to 1 L of the chlorine dioxide aqueous solution containing 1 to 2000 mg/L chlorine dioxide,
- wherein the surfactant is in an amount of 0.01 to 0.5 wt % with respect to 1 L of the chlorine dioxide aqueous solution containing 1 to 2000 mg/L chlorine dioxide,
- wherein the boron is in an amount of 0.05 to 0.5 wt. % wherein the boron is boric acid in an amount of 0.09 to 0.2 wt. % with respect to the total weight of the chlorine dioxide composition,
- wherein the molybdenum is in an amount of 0.005 to 0.05 wt. % wherein the molybdenum is sodium molybdenum in an amount of 0.01 to 0.03 wt. % with respect to the total weight of the chlorine dioxide composition,
- wherein the boron and molybdenum are in a ratio of 1:0.05 to 0.5 by wt. %,
- wherein the composition has a pH value of pH 5.5,
- wherein the pH adjuster is NaH2PO4.
9 more elements
Dependencies are inferred from the claim text.