EW: Stratification occurs. Water is separated
1.Adjust or increase the dosage of surfactants
2.Increase viscosity
3.Density adjustment
EW: Demulsification occurs. Oil is separated.
1.Changing surfactants (adding polymer surfactants, non-ionic surfactants)
2. Increase viscosity
3. Density adjustment
EW: Crystal precipitation
1. Solvent adjustment, increase solubility and reduce the proportion of polar solvents
2. Add surfactants that are more lipophilic, or polymer surfactants that solubilize
3. Increase dosage of antifreeze
EC: Crystal precipitation
1. AI does not dissolve fully in the solvent. Use a solvent with better solubility
2. Add emulsifiers with solubilizing effect
3. Check whether there is decomposition
EC: Product becomes turbid and precipitates during storage.
1. If turbidity precipitates due to incomplete removal of impurities, filtration or sedimentation treatment is required.
2. If it's due to decomposition of AI, other solvents or stabilizers needs to be used.
3. Screen for better emulsifiers
EC: Decomposition during storage
1. Select good stabilizers and emulsifiers
2. Screen for stable solvents
3. Screen for appropriate pH and water control
EC: Products becomes turbid and heterogeneous during storage
1. Check if water level exceeds the standard
2. Screen for suitable solvents and packaging materials
3. Screen for suitable combination of emulsifiers
EC: Poor emulsification stability
1. Screen for more suitable surfactants.
2. Wrong ratio of emulsifiers. Adjust the proportion of hydrophilic and hydrophobic emulsifier
3. The emulsification stability will vary depending on water hardness and water temperature.
EC: crystallization in diluted products
1.Choose a solvent that dissolves AI better.
2. Too much polar solvents in the formula. Reduce % of polar solvents and increase % of non-polar solvents with good dissolving ability.
3. It is easy to crystallize when diluted with low-temperature water. Add more non-polar solvents with better dissolving ability.
