Polyether F-68 (Poloxamer 188) is a white to slightly yellow waxy solid with certain hygroscopicity. Therefore, proper storage is crucial to maintain its performance. The product is chemically stable under normal temperature and pressure, but should avoid long-term exposure to harsh environments such as high temperature, humidity, strong acids, and strong bases, otherwise it may cause caking or slow degradation.
Based on its non-ionic surfactant chemical structure, Polyether F-68 has good stability. Regarding the shelf life, the product database of Guoli Chemical has no specific fixed shelf life parameters. Referring to the common industry practice for Poloxamer products, under strict compliance with recommended storage conditions, its effective service life from the date of production is usually 2 to 3 years. It is recommended that users check the factory inspection report for the specific batch or contact Guoli Chemical to obtain the precise expiration date commitment for that batch.
| Parameter | Value/Description |
|---|---|
| Appearance | White to slightly yellow waxy solid |
| Hygroscopicity | Hygroscopic |
| Melting Point | 52～57℃ |
| Chemical Stability | Stable at room temperature; avoid strong acids, strong bases, and prolonged high temperature |
| Recommended Storage Temperature | Below 25°C |
| Flash Point | >260℃ |
| Moisture Content | ≤0.5% |
In high-safety applications such as pharmaceutical injectable emulsions or cell culture, special attention should be paid to preventing quality deterioration during storage. It is recommended to reseal unused product from large packages using high-barrier aluminum foil bags, evacuate as much air as possible, and add desiccant, then store in a cool cabinet to reduce moisture absorption and microbial growth.
For personal care and industrial applications, the original sealed woven bags can be kept and stored in a dedicated chemical warehouse with impermeable flooring. Follow the first-in, first-out inventory management principle. If the product shows significant color darkening, irritating odor, or severe caking that is difficult to break, discontinue use and dispose of it as chemical waste according to regulations.