Anionic Pesticide Buffering for High-Concentration Formulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Formulating high-concentration aqueous compositions of anionic pesticides that also include additional components is challenging due to limited solubility and high salt concentrations, making it difficult to achieve both high pesticide and component concentrations simultaneously.
Innovation Solution
An aqueous composition comprising an anionic pesticide and a buffer, where the anionic pesticide is dissolved with suitable cations and a buffer, such as potassium carbonate, to enhance solubility and concentration, allowing for higher concentrations of both the pesticide and buffer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the concentration of pesticide in the aqueous composition is increased, then the amount of inactive water solvent is reduced, but the solubility limit and high salt concentration make it difficult to add further components
Solution Approach 1:
A buffer system comprising a basic substance and its salt is introduced as an intermediary component. The buffer maintains pH within 6-10, creating a chemical environment that enables high concentrations of both anionic pesticides (30-80% w/w) and additional components to coexist in the aqueous composition without precipitation or incompatibility issues.
Solution Approach 2:
The pH parameter is controlled and maintained within the range of 6-10 through the buffer system. This parameter change enables the simultaneous high-concentration formulation of anionic pesticides and other components by preventing unwanted chemical reactions and maintaining solubility, thus resolving the contradiction between high pesticide concentration and component compatibility.
2Quantity of substance
If high concentrations of pesticide are achieved, then production and transportation costs are reduced, but the formulation becomes more difficult due to limited solubility
Solution Approach 1:
The buffer system acts as a chemical intermediary that facilitates the formulation of high-concentration pesticide compositions. By maintaining pH between 6-10, it prevents precipitation and chemical incompatibility, making the manufacturing process easier despite the high concentrations involved.
Solution Approach 2:
The invention creates a composite aqueous composition containing multiple components (anionic pesticide, buffer comprising basic substance and its salt, and optionally other additives) that can coexist at high concentrations. This composite formulation approach resolves the formulation difficulty by designing a synergistic system where components complement rather than conflict with each other.
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 composition achieves high concentrations of anionic pesticides and buffers, effectively controlling undesired vegetation, harmful insects, and phytopathogenic fungi while reducing secondary loss and improving equipment clean-out, thus enhancing application efficacy and reducing environmental impact.
Implementation Method 1
an aqueous composition comprising an anionic pesticide and a buffer
Implementation Method 2
the anionic pesticide and the buffer are dissolved in the aqueous composition
Data Source
AI summary
The present invention relates to methods of and compositions for reducing loss in pesticide application, the method comprising the steps of a) combining an anionic pesticide and a buffer, and b) applying the resulting composition to plants or to seed, soil, or habitat of said plants.