PEG-1000/1500 (polyethylene glycol) is a nonionic surfactant, appearing as a white waxy solid or flakes with some hygroscopicity. Proper storage methods are crucial for maintaining product performance and extending service life. According to the product technical specifications of Guoli Chemical, this product is shipped with moisture-proof sealed packaging. Users should ensure the packaging is intact upon receipt. After opening, unused product should be resealed promptly to prevent moisture absorption and contamination.
The storage environment must meet the following conditions: The warehouse should be kept cool, dry, and well-ventilated, avoiding direct sunlight. Although PEG-1000/1500 has excellent thermal and chemical stability, and does not decompose or discolor within reasonable processing temperature ranges, it is still recommended to keep the storage environment temperature within an appropriate range, avoiding extreme high temperatures or drastic temperature fluctuations. At the same time, the product should be kept away from incompatible substances such as strong oxidizing agents to prevent accidental reactions.
Regarding the shelf life, PEG-1000/1500 has stable shelf life performance under recommended storage conditions. Due to its stable chemical nature and resistance to deterioration, it can be stored for a long time under standard sealed, moisture-proof, and light-protected storage conditions. For specific shelf life, please refer to the label on the product packaging or the product Safety Data Sheet (SDS), and rely on the factory inspection report and batch information.
| Storage Element | Specific Requirement |
|---|---|
| Packaging Method | Moisture-proof sealed packaging; reseal promptly after opening |
| Ambient Temperature | Cool environment, avoid extreme high temperatures and drastic temperature fluctuations |
| Ambient Humidity | Dry environment, prevent moisture absorption |
| Ventilation Condition | Well-ventilated warehouse |
| Light Requirement | Avoid direct sunlight |
| Isolation Requirement | Keep away from strong oxidizing agents |
To ensure the product continues to meet usage requirements, it is recommended to establish a first-in-first-out inventory management system. For products stored long-term, a visual inspection can be performed before use—normal product should be a white waxy solid or flakes, without discoloration, odor, or caking. If the packaging is damaged, the product is severely caked due to moisture absorption, or the appearance is abnormal, quality re-inspection should be conducted before deciding whether to use it.