G-25 Glycereth-25, as a nonionic surfactant, has excellent stability in practical applications. However, if the formulation design, operation process, or storage conditions are improper, problems such as poor emulsification effect, unstable system, or non-transparent solubilization may still occur. When encountering abnormal usage, it is recommended to first conduct a systematic investigation from three dimensions: formulation compatibility, operation process parameters, and raw material quality.
If self-investigation still cannot solve the problem, Guoli Chemical has a professional technical service team that can provide customers with formulation diagnosis, process optimization suggestions, and product selection guidance. You can submit problem descriptions, batch numbers, formulation overviews, and abnormal phenomena through official business channels, and the technical staff will provide targeted solutions. For complex problems, sample testing or on-site technical service can also be coordinated.
| Problem Phenomenon | Possible Causes | Troubleshooting Suggestions |
|---|---|---|
| Emulsion system stratification or demulsification | Improper HLB value matching; insufficient emulsifier dosage; imbalance of oil and water phase ratio; improper temperature control | G-25 has high hydrophilicity; when used alone, confirm whether the HLB value required by the oil phase matches; consider compounding with low HLB emulsifiers; check homogenization speed and time |
| Turbid or non-transparent system after solubilization | The amount of solubilizate exceeds the solubilization limit of G-25; system pH deviates from the stable range; interference from ionic components | Gradually reduce the proportion of solubilizate to test the transparent critical point; G-25 is stable over a wide pH range, but attention should be paid to compatibility with other raw materials; nonionic surfactants may have a decreased cloud point in high-concentration electrolyte systems |
| Abnormal product morphology (stratification, precipitation, discoloration) | Storage temperature exceeds the range of 10°C to 40°C; poor container sealing causing moisture absorption; contact with incompatible substances | Confirm whether storage conditions meet SDS requirements; if frozen, restore to room temperature and stir evenly before re-evaluation; discontinue use if severe discoloration or odor occurs |
| Abnormally high or low foam | Synergistic or antifoaming effects of other surfactants in the formulation; high water hardness | G-25 itself is a low-foaming nonionic surfactant; if foam increases abnormally, check whether it is compounded with other high-foaming surfactants; it has excellent hard water resistance, and conventional water quality has little effect |
| Poor skin feel or irritation after use | Excessive dosage; synergistic effect with other irritating raw materials; batch variation | Adjust according to recommended dosage; G-25 has been toxicologically verified to have no skin irritation and mild eye irritation, with high safety; if abnormalities occur, check other components in the formulation |
Personal care product formulation: When used as a solubilizer, it is recommended to pre-mix G-25 with the substance to be solubilized (fragrance, essential oil, etc.) in proportion, then slowly add to the water phase while stirring to facilitate the formation of a transparent and stable microemulsion system. When used as an O/W emulsifier, it is recommended to compound with low HLB emulsifiers; proper HLB matching can significantly improve emulsion stability.
Industrial applications: When used in metalworking fluids, pay attention to the circulation cycle of the working fluid and regularly test pH and concentration. For textile oils, it is recommended to use in combination with antistatic agents. In industrial cleaning, the low-foaming characteristics of G-25 are particularly suitable for high-pressure spray systems, effectively avoiding foam overflow issues.
To obtain official technical support from Hai'an Guoli Chemical Co., Ltd., it is recommended to contact us through the following channels:
1. Business contact channel: Contact the sales manager or regional business representative assigned to you, directly report the problems encountered during use, and submit the product batch number, usage process parameters, and description of abnormal conditions.
2. Sample testing service: If in-depth analysis is needed, send the problem sample and retained sealed sample to the Guoli Chemical Technology Center for physical and chemical index retesting and application performance evaluation.
3. Technical data reference: The Certificate of Analysis (COA) and Safety Data Sheet (SDS) contain detailed physical and chemical index ranges and safety data, which can serve as a reference for preliminary troubleshooting. The specific physical and chemical index ranges of the product are subject to the COA.
The Guoli Chemical technical team has extensive experience in nonionic surfactant applications and can provide customers with comprehensive technical support from formulation design, process optimization to problem diagnosis, helping to ensure stable product application.