The storage management of Polyether L-61 (Poloxamer 181) directly affects the product's performance and safety. According to the product safety data sheet, it should be stored in a cool, dry, and well-ventilated dedicated warehouse, keeping the container always sealed. The recommended storage temperature range is 5–40°C. Avoid drastic temperature changes and freezing to prevent moisture absorption or quality degradation due to temperature fluctuations. The storage area should be away from heat sources, sparks, open flames, and high-temperature surfaces, as well as other ignition sources. It should be kept at a safe distance from incompatible substances such as strong oxidizers, strong acids, and strong bases.
Regarding the choice of packaging container materials, it is recommended to use materials with good compatibility such as stainless steel, carbon steel, polyethylene (PE), or polypropylene (PP). Special attention should be paid to avoiding containers made of copper, aluminum, and their alloys to prevent incompatible reactions. The floor of the storage area should be made of impermeable material and should be equipped with spill containment facilities (such as dikes or trays) to prevent environmental contamination in case of accidental spills. The product's water hazard class is WGK 1 (slightly hazardous to water). In case of a spill, it should be contained immediately and prevented from entering sewers or surface waters. Standard packaging includes iron drums or IBC totes, with specific specifications available upon request.
Regarding the shelf life, the product database states "performance remains stable within the shelf life" without specifying a specific period. However, according to common industry practices for polyether nonionic surfactants, under strict compliance with the above storage conditions (sealed, normal temperature, moisture-proof, light-proof) and with the original packaging unopened, the typical shelf life of Polyether L-61 is 12 to 24 months from the date of manufacture. It is recommended that users refer to the specific shelf life indicated on the product packaging label or the Certificate of Analysis (COA). Once opened, the product should be used as soon as possible and resealed to prevent moisture and impurities from affecting product quality.
| Storage Parameter | Requirement |
|---|---|
| Storage Temperature | 5–40°C, avoid drastic temperature changes |
| Environmental Requirements | Cool, dry, well-ventilated; keep container sealed |
| Recommended Container Materials | Stainless steel, carbon steel, polyethylene (PE), polypropylene (PP) |
| Prohibited Container Materials | Copper, aluminum, and their alloys |
| Incompatible Substances | Strong oxidizers, strong acids, strong bases |
| Water Hazard Class | WGK 1 (slightly hazardous to water) |
| Typical Packaging | Iron drums or IBC totes |
| Typical Shelf Life | 12–24 months (subject to product label; database does not specify a specific period) |
To ensure the product maintains optimal performance during storage, it is recommended to establish an inventory management system following the "first in, first out" principle. After each use, immediately seal the container opening to minimize contact with moisture in the air. If the product exhibits abnormalities such as stratification, cloudiness, or significant color changes after long-term storage, small-scale testing is recommended before use to confirm whether performance indicators (such as hydroxyl value, cloud point, etc.) still meet process requirements. For users purchasing in large quantities, it is advisable to confirm the specific batch shelf life information and storage recommendations with GuoLi Chemical sales personnel.