Shelf-Stable Hydrogen Peroxide Disinfectant via Sulfonic Acid Stabilization
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Solution Overview
Problem
Existing hydrogen peroxide disinfectant solutions face challenges in being effective at high dilution ratios, non-toxic, non-corrosive, biodegradable, and environmentally friendly while maintaining stability and efficacy.
Innovation Solution
A shelf-stable, concentrated antimicrobial solution comprising hydrogen peroxide, readily biodegradable anionic surfactants, salicylic acid, chelating agents, and low-corrosive sulfonic acids, with optional nonionic surfactants and glycol ether solvents, formulated to be free of volatile organic compounds and optimized for pH and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydrogen peroxide concentration is increased to maintain effectiveness at high dilution ratios, then antimicrobial efficacy is improved, but corrosiveness and hazard to handle increases
Solution Approach 1:
The patent formulates hydrogen peroxide solutions at optimized concentrations (1.5%-8% w/w) with controlled pH (0-3.5) to balance antimicrobial efficacy with reduced corrosiveness and improved safety for handling, while maintaining stability through this parameter optimization
Solution Approach 2:
The patent introduces stabilizing agents including chelating agents (0.005%-10% w/w), surfactants (10%-30% w/w), and other additives that act as intermediaries to enhance the performance and stability of hydrogen peroxide at lower, safer concentrations, allowing effective dilution ratios without requiring high concentrations
2Object-affected harmful factors
If hydrogen peroxide concentration is decreased to reduce corrosiveness and improve safety, then handling safety is improved, but effectiveness at high dilution ratios deteriorates
Solution Approach 1:
The patent introduces stabilizing agents including chelating agents (0.005%-10% w/w), surfactants (10%-30% w/w), and other additives that act as intermediaries to enhance the performance and stability of hydrogen peroxide at lower, safer concentrations, allowing effective dilution ratios without requiring high concentrations
Solution Approach 2:
The patent formulates hydrogen peroxide solutions at optimized concentrations (1.5%-8% w/w) with controlled pH (0-3.5) to balance antimicrobial efficacy with reduced corrosiveness and improved safety for handling, while maintaining stability through this parameter optimization
3Speed
If conventional disinfectants are used to achieve rapid disinfection, then disinfection rate is improved, but volatile organic compounds are emitted or toxic residues are left
Solution Approach 1:
The patent employs hydrogen peroxide as a strong oxidant that rapidly disinfects through oxidation of microbial cells, achieving fast disinfection rates while decomposing into water and oxygen without leaving toxic residues or emitting volatile organic compounds
Solution Approach 2:
The patent converts the typically harmful high concentration of hydrogen peroxide into a benefit by using controlled, optimized concentrations with stabilizing agents that prevent decomposition and maintain efficacy, transforming a hazardous substance into a safe and effective disinfectant
4Stability of the object's composition
If hydrogen peroxide solution is formulated to be stable, then shelf stability is improved, but antimicrobial effectiveness may be compromised
Solution Approach 1:
The patent introduces stabilizing agents including chelating agents (0.005%-10% w/w), surfactants (10%-30% w/w), and other additives that act as intermediaries to enhance the performance and stability of hydrogen peroxide at lower, safer concentrations, allowing effective dilution ratios without requiring high concentrations
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides effective antimicrobial activity against bacteria, viruses, and fungi at high dilution ratios, is safe to handle, and environmentally friendly, maintaining stability and aesthetic appeal with low corrosion and toxicity.
Implementation Method 1
hydrogen peroxide at a concentration of from about 1.5% w/w to 8% w/w
Implementation Method 2
at least one readily biodegradable anionic surfactant in a concentration of from about 10% w/w to about 30% w/w
Implementation Method 3
at least one chelating agent in a concentration of from about 0.005% w/w to about 10% w/w
Data Source
AI summary
A disinfecting solution includes hydrogen peroxide at a concentration of from about 1.5% w/w to 8% w/w; at least one readily biodegradable anionic surfactant in a concentration of from about 10% w/w to about 25% w/w; at least one of salicylic acid and salts thereof, in a concentration of from about 1% w/w to about 8% w/w; at least one chelating agent in a concentration of from about 0.005% w/w to about 10% w/w; and at least one low-corrosive non-surfactant sulfonic acid selected from benzenesulfonic acid, benzene disulfonic acid, xylene sulfonic acid, toluene sulfonic acid, cumene sulfonic acid, sulfosalicylic acid, naphthalene mono- or di-sulfonic acid, methane sulfonic acid, and isethionic acid in a concentration of from about 1% w/w to about 15% w/w. The solution is free of acetic acid, furoic acid, phenylacetic acid, cationic surfactants, amphoteric surfactants, aromatic alcohols, halogen acids, phenols, peracid activators, bleaches, and (optionally) benzoic acid.