Emulsifier A-103 (Oleic Acid Polyoxyethylene Ester) may encounter issues such as poor emulsification, emulsion stratification, turbidity, gelation, or incompatibility with other components in the system during practical applications. First, do not blindly increase the dosage. Instead, follow the approach of "Phenomenon → Cause → Countermeasure" for step-by-step troubleshooting: check whether the product is within its shelf life, whether storage conditions meet the requirement of 5–35°C, and whether the addition sequence and process conditions (such as temperature, stirring speed, pH value) are appropriate. Most usage issues stem from mismatched process parameters and product characteristics, rather than quality problems of the product itself.
If the problem cannot be resolved after basic troubleshooting, it is recommended to prepare the following information and contact the Guoli Chemical technical support team: product batch number, purchase date, specific formulation system (including main components and ratios), operating process conditions (temperature, feeding sequence, stirring method, etc.), and a description of the specific abnormal phenomenon (preferably with photos or samples). Complete information helps technicians quickly identify the root cause of the problem.
As a professional surfactant manufacturer, Guoli Chemical typically provides technical support through the following channels: official technical service hotline, one-on-one communication with regional sales managers, and on-site technical visits when necessary. For complex formulation issues, you can request to send samples to the Guoli Chemical application laboratory for formulation analysis and optimization suggestions.
| Abnormal Phenomenon | Possible Causes | Suggested Countermeasures |
|---|---|---|
| Emulsion stratification or demulsification | HLB value mismatch with oil phase; insufficient emulsifier dosage; inadequate homogenization | Adjust emulsifier dosage or blend with other emulsifiers to adjust HLB value; increase homogenization speed or extend homogenization time |
| Significant darkening of product color or off-odor | Oxidation due to excessively high storage temperature; exceeding shelf life | Check storage environment to ensure sealed storage at 5–35°C; replace with a new batch of product |
| Paste too hard to dispense at low temperature | Increased viscosity of the product at low temperature is a normal phenomenon | Warm up to 20–30°C environment before use; avoid direct heating above 35°C |
| Unstable compounding with anionic/cationic systems | Improper ratio or pH value outside applicable range | Adjust the ratio of each surfactant; it is recommended to conduct small-scale compatibility tests first |
| Excessive foaming in formulation affecting operation | A-103 itself is low-foaming, but other components in the system may cause foaming | Check other surfactant components; add defoamer if necessary |
| Irritation after skin or eye contact | H315/H319 hazardous properties of the product | Immediately follow SDS first aid measures; for skin, rinse with plenty of water for 15 minutes; for eyes, rinse and seek medical attention |
Preventive Measures: After each new batch of product arrives, it is recommended to conduct small-scale tests first to confirm compatibility with existing formulations before large-scale production. During the formulation development phase, communicate with Guoli Chemical technical staff to obtain recommended starting dosages (typically 2%–10% of oil phase weight) and optimal process windows.
Formulation Optimization Approach: If the effect of A-103 used alone does not meet expectations, consider blending it with low-HLB emulsifiers (such as the Span series) to broaden the emulsification application range. In metalworking fluids or pesticide formulations, it is recommended to use appropriate coupling agents or stabilizers to further enhance the long-term stability of the system.