Oleic Acid Polyoxyethylene Ester A-105 (OEO-105) is a stable nonionic surfactant with a low probability of quality issues under normal conditions. Abnormal phenomena during use are mostly related to storage conditions, formula compatibility, or operation procedures. According to the technical specifications in the product database, this product is not alkali-resistant, has good chemical stability, but extreme conditions (such as long-term storage above 40°C, contact with strong oxidizers, or prolonged coexistence with metals like copper and aluminum) may cause color deepening or performance degradation.
When encountering problems such as unsatisfactory emulsification, stratification, turbidity, abnormal color, or decreased wettability, please first check against the product's factory test indicators (such as pH, moisture, acid value, HLB value, cloud point, etc.) to confirm whether they are caused by improper storage or usage. If the problem persists, Guoli Chemical has a dedicated application technology team that can provide one-on-one analysis for your specific formulation system.
| Issue Phenomenon | Possible Causes | Investigation Direction |
|---|---|---|
| Emulsion stratification, demulsification | HLB mismatch, insufficient dosage, oil phase change | Confirm HLB value (this product is 10.5), check required HLB of oil phase, adjust dosage or compound |
| Product color deepening | High-temperature storage, light exposure, contact with copper/aluminum ions | Check if storage temperature exceeds 40°C, confirm container material is stainless steel or polyethylene |
| Slow dissolution or turbidity in water | Incorrect addition order, hard water | This product is easily soluble in water; pre-mix with warm water recommended; can be used normally in hard water |
| Insufficient wetting and penetration | Low dosage, high system pH | Note this product is not alkali-resistant; strong alkaline environment will weaken performance |
| Product odor or excessive acid value | Ester bond hydrolysis, prolonged storage | Check acid value (standard ≤5), store tightly sealed to prevent moisture absorption |
In various application fields, the recommended dosage of A-105 is usually between 1% and 5% (specific dosage should be determined by formulation experiments). For use in metalworking fluids, it is recommended to first add it to the oil phase and mix thoroughly, then slowly add water for phase inversion; for use in pesticide emulsifiers, it can be used in combination with other emulsifiers through HLB value compounding to achieve broader adaptability. If compatibility issues with this product arise in the formulation (e.g., when used with high-concentration alkali or strong oxidizers), please test the system stability in advance.
There is no publicly available direct technical support hotline in the database, but as a professional supplier, Guoli Chemical usually provides services to customers through the following channels: