Peracid Stability via Magnesium Salt and Chelating Agent
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Solution Overview
Problem
Conventional peracid compositions have limited storage stability, leading to reduced shelf life and increased replacement needs in storage, particularly in warehouses.
Innovation Solution
A stabilized peracid composition is created by combining a peracid with a stabilizing composition containing a magnesium salt and a chelating agent, such as 1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP), which enhances storage stability without requiring a drying step, retaining at least 50% of the initial peracid level for 1 year at ambient temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional peracid compositions are used, then they provide sanitizer and disinfectant functions, but they have limited storage stability and reduced shelf life
Solution Approach 1:
A stabilizing composition is introduced as an intermediary substance between the peracid and the storage environment. This stabilizing composition includes specific ingredients that mediate the interaction between peracid and potential degradation factors, thereby extending shelf life while maintaining sanitizer and disinfectant functions.
Solution Approach 2:
The invention changes the chemical parameters of the peracid composition by adding stabilizing agents. This modifies the chemical environment to reduce degradation rates, allowing the peracid to maintain its effectiveness for longer periods during storage without compromising its sanitizing and disinfecting properties.
2Duration of action of stationary object
If peracid compositions are stored for extended periods, then they remain available for use, but peracid degradation occurs requiring frequent replacements
Solution Approach 1:
The stabilizing composition is added in advance to the peracid formulation before storage. This preliminary action prevents degradation from occurring during storage by establishing a protective chemical environment that maintains peracid integrity throughout the extended storage period.
Solution Approach 2:
The invention converts the naturally occurring degradation process into a beneficial outcome by using the degradation products or reaction intermediates in the stabilizing composition to actually protect the peracid from further degradation, thereby reducing overall peracid loss during storage.
3Reliability
If stabilizing composition is added to peracid, then storage stability is enhanced, but the composition complexity increases
Solution Approach 1:
The stabilizing composition is designed to perform multiple functions simultaneously: it stabilizes the peracid against degradation, maintains the desired pH range, and may also provide additional sanitizing or disinfecting properties. This multi-functionality reduces the need for separate additives and simplifies the overall formulation despite the enhanced stability requirements.
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 stabilized peracid composition significantly extends shelf life, maintaining at least 50% of the initial peracid level for 1 year at 20-25°C, reducing the need for frequent replacements and ensuring stability over time.
Implementation Method 1
a chelating agent
Implementation Method 2
a metal salt; wherein the metal salt comprises a magnesium salt present in the stabilized peracid composition at 0.1 to 1 wt%
Data Source
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AI summary
The present invention is directed to stabilized peracid compositions. Stabilizing compositions including a metal salt and a chelating agent are added to compositions including peracids. The results stabilized peracid compositions have increased shelf life and storage stability.