G-18 Glycerol Polyoxyethylene Ether (Polyoxyethyl Glycerol Ether) is a non-ionic surfactant with relatively stable chemical properties, maintaining performance in acidic, alkaline, and hard water environments. However, to ensure product quality is not affected, attention should be paid to controlling environmental conditions during storage, avoiding high temperatures, freezing, and improper contact.
Regarding the shelf life, the official product database of Hai'an Guoli Chemical Co., Ltd. has not yet provided specific shelf life data for this product. According to industry practice for non-ionic surfactants, under strict adherence to storage conditions, the generally recommended shelf life is 12 to 24 months from the date of manufacture. It is recommended to refer to the shelf life stated on the product packaging label, or contact the sales department of Guoli Chemical for batch-level shelf life confirmation.
For products beyond the recommended shelf life, if the appearance (colorless to light yellow transparent liquid) shows no abnormalities and no stratification or turbidity, samples can be taken to test key indicators (such as pH value, hydroxyl value, cloud point, etc.) to confirm whether they can still be used.
| Storage Element | Specific Requirement |
|---|---|
| Ambient Temperature | Recommended range 5~30°C, avoid freezing and high temperature exposure |
| Ambient Humidity | Keep dry, prevent moisture absorption |
| Ventilation Conditions | Store in a well-ventilated dedicated warehouse, avoid vapor accumulation |
| Container Status | Keep container tightly sealed to prevent impurities and moisture ingress |
| Avoid Sources | Keep away from heat sources, sparks, open flames |
| Isolate Storage | Store separately from incompatible materials such as strong oxidizers, acids, and bases |
| Empty Container Disposal | Empty containers may contain hazardous residues; do not dispose of without thorough cleaning |
When dispensing G-18, it is recommended to follow the "first-in, first-out" principle to avoid long-term accumulation. After each withdrawal, the container should be immediately sealed to reduce contact of the product with moisture in the air. If the product becomes turbid or separates due to low temperature, it can be slowly warmed to room temperature and stirred evenly before use; this usually does not affect its core properties such as emulsification and solubilization.
This product is classified under GHS as: Skin irritation (H315) and serious eye irritation (H319). Wear protective gloves and safety goggles during access and handling, and wash hands thoroughly after operation. In case of accidental contact with skin or eyes, rinse immediately with plenty of water; for eye contact, continue rinsing for at least 15 minutes and seek medical attention as soon as possible. For specific safety data, refer to the Safety Data Sheet (SDS). For final confirmation of shelf life, it is recommended to directly consult the technical team of Guoli Chemical for authoritative answers.