Tween-20 lauric acid (polysorbate 20) is a chemically stable nonionic surfactant, but it may undergo hydrolysis under strong acid, strong alkali, and high-temperature conditions. Therefore, proper storage conditions are crucial to maintaining product performance. This product has certain hygroscopicity; the container must be kept tightly closed to prevent moisture from entering the air and causing product quality degradation.
The storage area should be equipped with spill containment facilities, and the floor should be constructed of chemically resistant materials. Since this product is flammable (flash point >110°C), it must be kept away from heat sources, sparks, and open flames. Smoking or hot work is strictly prohibited in the storage area.
In addition, Tween-20 lauric acid is harmful to aquatic organisms (H402). The storage area should be equipped with spill containment dikes or trays to prevent accidental leakage from entering sewers, surface water, or soil environments, causing ecological pollution.
| Item | Requirement |
|---|---|
| Container Condition | Keep tightly closed to prevent moisture absorption |
| Storage Environment | Cool, dry, and well-ventilated place |
| Recommended Temperature Range | 5°C to 30°C |
| Temperature Restrictions | Avoid freezing or prolonged high-temperature exposure |
| Light Requirements | Avoid direct sunlight |
| Heat and Ignition Sources | Keep away from heat sources, sparks, and open flames |
| Incompatible Substances | Store separately from strong oxidizers, strong acids, etc. |
| Floor Requirements | Chemically resistant, with spill containment facilities |
To avoid cross-contamination and moisture accumulation from repeated access, it is recommended to dispense the product into smaller operating containers based on daily usage. The original packaging drum should be sealed immediately after each use. If the product becomes viscous or even gelatinous at low temperatures, place the container in an environment at 15°C to 25°C to slowly warm up and gently stir before use. Do not heat directly with open flame or steam to avoid local overheating that could cause product degradation.
For food-grade (E432) and pharmaceutical-grade applications, strict segregation storage should be implemented. Use dedicated utensils for material dispensing to prevent cross-contamination. Label and record batch numbers and outbound inventory to ensure traceability.