Devices, Systems and Metods of Making and Using Chlorine Dioxide Based Formulation with Improved Stability
AssigneeSpectrum Doxyicide, LLC
InventorStephen Bradford Kong
Life of this patent
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Abstract
Disclosed are devices, systems, and methods for producing broad spectrum disinfectants, sanitizers, cleaner and deodorizers using chlorine dioxide compositions, and more particularly, to methods for producing chlorine dioxide compositions having improved long term stability by the proper choice of pH and through the careful choice of other product formula ingredients.
Claims20
A device for delivering stabilized chlorine dioxide comprising:
- a delivery device configured to deliver a solution or product to a target application;
- and
- a stabilized chlorine dioxide (ClO2) product that is configured to be delivered using the delivery device, wherein the stabilized chlorine dioxide is produced using a method comprising:
- adding a first amount of Hydrochloric acid (HCl) to a second amount of Sodium chlorite (NaClO2) that is dissolved in water, the first amount being greater than the second amount;
- agitating the HCL and NaClO2 for at least 10-15 minutes to mix the chemicals and thus allowing the chemical to react to completion;
- and
- adding a third amount of Dowfax to the solution and slowly agitate the HCl, NaClO2 and Dowfax solution to distribute the Dowfax;
- and
- after the reaction to generate chlorine dioxide (ClO2) in solution has gone to completion, adding a fourth amount of Sodium Hydroxide (NaOH) to adjust the pH of the resulting ClO2 solution to a desired pH and ClO2 concentration.
A method of making a high concentration chlorine dioxide with improved long-term stability comprising:
- adding 42.61 g/l 10% Hydrochloric acid (HCl) to 3.20 g/l Sodium chlorite (NaClO2) dissolved in water;
- agitating the HCL and NaClO2 for at least 10-15 minutes to mix the chemicals;
- adding 1.50 g/l of Dowfax to the HCl, NaClO2 solution;
- slowly agitate the HCl, NaClO2 and Dowfax solution to distribute the Dowfax;
- and
- adding 42.23 g/l of 5% Sodium Hydroxide (NaOH) to adjust the pH of the ClO2 solution to a desired pH.
A method for producing a high concentration chlorine dioxide with improved long-term stability comprising:
- 1) adding a molar excess concentration amount of Hydrochloric acid (HCl) to an amount of Sodium chlorite (NaClO2) dissolved in an amount of water;
- 2) agitating the HCL and NaClO2 until the reaction to form chlorine dioxide (ClO2) is complete;
- 3) adding an amount of Dowfax to the HCl and NaClO2 solution;
- 4) slowly agitating the HCl, NaClO2 and Dowfax solution to distribute the Dowfax;
- and
- 5) adding an amount of Sodium Hydroxide (NaOH) to the ClO2 solution to adjust the pH to a target value;
- wherein:
- the molar excess concentration amount of acid=42.61 g/l 10% HCl;
- the amount of sodium chlorite=3.20 g/l NaClO2 (80%);
- the amount of Dowfax=1.50 g/l Dowfax;
- the amount of NaOH=42.23 g/l of 5% NaOH;
- ClO2 concentration approximately 1200-1300 PPM
- pH target value approximately 4.5-6.5.
Dependencies are inferred from the claim text.