Solubilizer S-15 (PEG-40 hydrogenated castor oil) is a chemically stable nonionic surfactant that exhibits good stability in acid, alkali, and electrolyte solutions. To ensure product quality does not deteriorate, storage should strictly follow the requirements of the product safety data sheet, especially regarding container sealing and temperature/humidity control. This product is slightly hygroscopic; prolonged exposure to humid air may cause turbidity or increased water content, affecting solubilizing performance.
Regarding shelf life, there is no clear official shelf life data in the Guoli Chemical product database. According to industry practices and the characteristics of similar PEG-40 hydrogenated castor oil products, under cool, dry, well-ventilated conditions with sealed containers, the expected shelf life of unopened solubilizer S-15 is generally 2 years from the date of manufacture. It is recommended to refer to the production date or expiry date label on the product packaging. Once opened, it should be used as soon as possible, and the container should be resealed immediately after each use.
| Parameter Item | Indicator/Description |
|---|---|
| Recommended Storage Temperature | 5°C ~ 40°C (avoid extreme heat and freezing) |
| Storage Environment | Cool, dry, well-ventilated warehouse |
| Container Requirements | Keep sealed, use original or compatible containers |
| Incompatible Substances | Keep away from strong oxidizers, strong acids, strong bases |
| Appearance | Colorless to slightly yellow transparent liquid |
| Water Content | ≤1.0% |
| Flash Point (Closed Cup) | ≥100°C |
| Chemical Stability | Good stability in acid, alkali, and electrolyte solutions, resistant to hard water |
| Hygroscopicity | Slightly hygroscopic |
Solubilizer S-15 is widely used in pesticide formulations, daily chemicals, industrial cleaning, and textile printing/dyeing. Before use, it is recommended to check whether the product appearance is still a colorless to slightly yellow transparent liquid. If there is obvious turbidity, layering, or odor, discontinue use. If the product becomes turbid or solidifies at low temperatures, this is a reversible physical change for nonionic surfactants; it can usually be used after returning to room temperature and stirring evenly, without excessive heating.
After opening, the product should be avoided from prolonged exposure to air. Tools used for extraction should be clean and dry to prevent introduction of moisture and impurities. It is recommended to use within 1 year to ensure optimal solubilizing and emulsifying effects.