Cyanamide Emulsifiable Composition Storage Stability
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Solution Overview
Problem
Cyanamide-based aqueous solutions for plant growth regulation are unstable during storage, especially at temperatures above 20 °C, leading to degradation into urea and dicyandiamide, which affects their efficacy and storage stability.
Innovation Solution
An emulsifiable or self-emulsifying liquid composition containing 5-50% cyanamide, 10-90% of a mixture of oil and water-miscible organic solvent, and 0.1-10% emulsifier, where cyanamide is dissolved in the organic solvent, forming a stable emulsion upon mixing with water, enhancing storage stability and application efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cyanamide is used in aqueous solution form, then it can be applied for plant growth regulation, but it degrades during storage especially at temperatures above 20°C into urea and dicyandiamide
Solution Approach 1:
The patent changes the physical-chemical parameters of the cyanamide formulation by dissolving cyanamide in water-miscible organic solvents (such as alcohols, ketones, esters, or nitriles) instead of using pure aqueous solutions. This parameter change in the solvent system allows the formulation to maintain stability at higher storage temperatures while remaining effective for plant growth regulation when applied
Solution Approach 2:
The patent creates a composite formulation system combining cyanamide with water-miscible organic solvents and optionally emulsifiers. This composite material approach allows the formulation to exhibit both the desired biological activity of cyanamide and improved storage stability, resolving the contradiction between ease of operation and reliability
2Reliability
If cyanamide is dissolved in water-miscible organic solvent, then storage stability is improved, but formulation complexity increases
Solution Approach 1:
The patent modifies the formulation parameters by selecting specific water-miscible organic solvents with appropriate properties (such as ethanol, isopropanol, acetone, ethyl acetate, acetonitrile, or propionitrile). These parameter changes enable improved storage stability while maintaining relatively simple formulation procedures and application methods
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 improved storage stability and efficacy as a plant growth regulator, allowing for better accessibility of the active ingredient to plants and maintaining effectiveness comparable to traditional formulations with reduced active ingredient amounts.
Implementation Method 1
An emulsifiable or self-emulsifying liquid composition for regulating plant growth, comprising cyanamide... 10 to 90% by weight of a mixture of at least one oil and at least one water-miscible organic solvent, and 0.1 to 10% by weight of at least one emulsifier
Data Source
AI summary
The present invention relates to an emulsifiable or self-emulsifying liquid composition for plant growth control which contains cyanamide.