If you encounter usage problems, please first check the product database for common symptoms. For emergencies, follow the safety instructions and obtain professional technical support through the official channels of Guoli Chemical.
Common Usage Issues and Troubleshooting Suggestions
Stearyl Polyoxyethylene Ether SG-40 is stable under normal use conditions, but the following problems are relatively common and can be self-checked first:
- Product caking or difficult to take out: The melting point of this product is 48-52°C, and it is a waxy solid at room temperature. If the storage temperature exceeds 35°C, it may soften and cake; if it is below 5°C, it may harden. It is recommended to place the product in an environment of 20-25°C to restore it before use. Do not directly bake at high temperatures.
- Poor emulsification effect: The HLB value of this product is 16-17, and it is an O/W type emulsifier. If the HLB value does not match the oil phase, try compounding with a low HLB value emulsifier (such as SG-6, SG-10) to adjust. It is recommended to pre-melt SG-40 in a 60-70°C water bath before adding it to the oil phase, with a stirring speed not lower than 500 rpm, and an emulsification time of not less than 15 minutes.
- Turbid or stratified solution: Check if the water hardness is too high. This product has good hard water resistance, but extreme water quality may still affect it. The pH value of a 1% aqueous solution should be controlled within the range of 5.0-7.0. If it deviates from this range, check whether the raw materials or process have introduced acid or alkali residues.
- Excessive foaming: SG-40 is a low-foaming surfactant. If abnormal foam appears, it may be due to improper compounding ratio with other high-foaming surfactants. It is recommended to reduce the amount of anionic surfactant or add a trace amount of defoamer.
Emergency Treatment (According to Product Safety Data Sheet)
In case of accidental contact or leakage, strictly follow the steps below:
- Skin contact: Immediately rinse with plenty of water and soap for at least 15 minutes, and remove contaminated clothing. This product is non-irritating, but rinsing can completely remove residues. If irritation persists, seek medical attention.
- Eye contact: Rinse gently with running water or saline for at least 15 minutes, keeping eyelids open. If discomfort persists, seek medical examination.
- Inhalation of dust: Move the person to fresh air. If discomfort persists, seek medical attention promptly.
- Product leakage: For small spills, absorb with inert materials such as sand or vermiculite and collect into a closed container; for large spills, dike and contain, pump into a spare container. Wash water should not be discharged into sewers; collect and dispose of in accordance with environmental regulations.
- Ingestion: Rinse mouth immediately, do not induce vomiting, and drink 1-2 glasses of water. If a large amount is ingested or discomfort occurs, seek medical attention immediately and present the product safety data sheet.
Technical Parameter Quick Reference Table
When troubleshooting, you can compare the following key indicators to confirm whether the product is within the normal range:
| Parameter Item | Indicator Value | Description |
|---|
| Appearance | White to light yellow waxy solid | Abnormal darkening may indicate overheating during storage or expiration |
| Melting Point | 48-52°C | Excessive deviation may affect emulsification process |
| HLB Value | 16-17 | Suitable for O/W emulsion systems |
| pH of 1% Aqueous Solution | 5.0-7.0 | Out of range, check water quality and compatible raw materials |
| Acid Value | ≤2 mgKOH/g | Increase suggests possible hydrolysis and deterioration |
| Saponification Value | 25-35 mgKOH/g | Deviation requires checking batch quality issues |
| Moisture Content | ≤1.0% | Excessively high may affect solid state and emulsification efficiency |
| Active Content | ≥99% | Core quality control indicator |
| Cloud Point | >100°C | Confirms applicability in high-temperature systems |
| Storage Temperature | 5°C - 35°C | Exceeding this range may accelerate deterioration |
| Shelf Life | 12 months (from date of production) | After expiration, re-test to determine usability |
How to Obtain Technical Support from Guoli Chemical
Hai'an Guoli Chemical Co., Ltd. is the manufacturer of this product and has a complete technical service team. If the problem cannot be resolved through the above checks, it is recommended to obtain professional support through the following methods:
- Contact the sales representative: Directly contact the Guoli Chemical sales manager listed on the supply contract or order, provide the product batch number (printed on the packaging bag), production date, and problem description. Technical staff will respond within 1-2 working days.
- Call the corporate service hotline: Check the latest technical service phone number on the Guoli Chemical official website (www.guolichemical.com) to get an immediate response during working hours.
- Send an email for consultation: Send a detailed description of the problem, on-site photos or videos, process parameters, and other information to the corporate technical support email, so engineers can perform remote diagnosis.
- Send samples for testing: If a batch abnormality is suspected, negotiate to send retained samples back to the Guoli Chemical quality inspection center for re-testing. The testing cycle is usually 3-5 working days. Test items can refer to the above technical parameter table.
- On-site technical service: For major process issues, you can schedule a visit from a Guoli Chemical application engineer for on-site guidance to help adjust the formula or optimize usage conditions.
Please prepare the following information before contacting technical support
- Product name and batch number (printed on the side of the packaging bag)
- Production date and shelf life status
- Storage conditions (temperature, humidity, whether opened)
- Usage process parameters (temperature, pH value, dosage ratio, compatible raw materials)
- Detailed description of the problem phenomenon (photos or videos are better)
