Castor Oil Polyoxyethylene Ether EL-12 is a chemically stable nonionic surfactant that is resistant to acids and alkalis, and is not prone to deterioration under normal conditions. The key to storage lies in preventing moisture, high temperatures, and contamination. After opening, it should be sealed immediately to avoid prolonged exposure to air, which could cause slow moisture absorption or oxidation, thereby affecting its emulsification performance and formulation effectiveness.Regarding the shelf life, there is currently no clear official shelf life data in the Guoli Chemical product database, but according to industry practices and the chemical stability of such products, under strictly observed storage conditions, the recommended usage period for unopened original packaging is typically 2 years from the date of manufacture. For products beyond this period, it is recommended to test and confirm that key indicators (such as pH value, hydroxyl value, emulsifying power) have not significantly changed before use.
The following are product parameters related to storage (Data source: Guoli Chemical product database):
| Parameter | Description |
|---|---|
| Appearance | Light yellow to yellow transparent oily liquid |
| Chemical stability | Stable under normal conditions, resistant to acids and alkalis |
| Flash point (open cup) | >150 °C |
| Freezing point | < -10 °C |
| Hygroscopicity | Low |
| Moisture content | ≤0.5% |
To ensure consistent batch performance of the product, it is recommended to follow the "first in, first out" inventory management principle. When taking materials, use clean and dry tools to avoid introducing saliva, sweat, or other chemical impurities. If long-term storage is required, it is recommended to conduct small-sample performance verification before large-scale production.