OP-7 octylphenol polyoxyethylene ether is a nonionic surfactant with stable chemical properties and is not flammable. It can be stored and transported according to general chemical specifications. The storage environment should be cool, dry, and well-ventilated, and the container must always be sealed to prevent moisture absorption and external contamination. The storage area should be kept away from heat sources, sparks, open flames, and strong oxidizers to ensure safety.
Temperature conditions are key factors affecting the product's appearance and state. Within the recommended range of 5°C to 35°C, OP-7 maintains a stable liquid state. If the ambient temperature is too low, the product may become turbid or even solidify, which is a physical change and does not affect the inherent quality of the product—simply place it at room temperature to slowly warm up, and it will return to a clear state. Special attention should be paid to avoid freezing; although it can recover after freezing, repeated freeze-thaw cycles may adversely affect product uniformity.
| Storage Parameter | Requirement |
|---|---|
| Storage Temperature | 5°C – 35°C (recommended) |
| Environmental Requirement | Cool, dry, well-ventilated |
| Container Requirement | Sealed containers such as stainless steel, polyethylene, or plastic-lined iron drums |
| Materials to Avoid | Prolonged contact with metals like copper and aluminum is not recommended |
| Shelf Life | Two years under original sealed conditions |
| Flash Point | >150°C (closed cup), not classified as flammable |
In actual warehouse management, it is recommended to store OP-7 in batches and separate areas, following the "first-in, first-out" principle, and regularly check container seals. In winter, cold regions need to take antifreeze measures; if storage temperature cannot be guaranteed, the product can be moved to a warmer environment before use to naturally warm up. Products exceeding the two-year shelf life should be tested to confirm that all indicators are qualified before use, and should not be directly discarded.