Tween T-60 (polyoxyethylene (20) sorbitan monostearate) is a nonionic surfactant, appearing as a light yellow to amber oily liquid or paste at room temperature. Proper storage conditions are crucial for maintaining product performance and extending shelf life. Under normal temperature and sealed conditions, the product shelf life is two years from the date of manufacture.
The storage environment should be a cool, dry, and well-ventilated warehouse, away from heat sources, sparks, and open flames. Although the product has a high flash point (> 149°C, closed cup method) and is not classified as flammable dangerous goods, exposure to extreme temperature environments should still be avoided. The product is sensitive to moisture absorption, so containers must be kept sealed.
After opening, the product should be resealed as soon as possible. Unused product must not be returned to the original container to prevent contamination. Additionally, Tween T-60 should be stored separately from strong oxidizers, strong acids, and strong bases to avoid quality changes from mixed storage.
| Storage Parameter | Requirement |
|---|---|
| Temperature Range | 5°C to 35°C (recommended) |
| Environmental Requirement | Cool, dry, well-ventilated |
| Light | Avoid direct sunlight |
| Container Status | Keep sealed to prevent moisture absorption and foreign matter contamination |
| Packaging Form | Well-sealed plastic or iron drums |
| Shelf Life | Two years from manufacture date (under normal temperature and sealed conditions) |
| Prohibited Conditions | Avoid extreme temperatures, freeze-thaw cycles |
When selecting storage containers and pipelines, the following materials are recommended:
Avoid prolonged contact with copper or copper alloys to prevent product deterioration or container corrosion.