Polyethylene glycol 400 monooleate (PEG400MO) has good chemical stability when stored under recommended conditions. It is a non-flammable liquid (closed cup flash point generally greater than 150°C), but should still be kept away from heat sources, sparks, and open flames. The product is somewhat hygroscopic and should avoid exposure to high humidity environments to prevent excessive moisture absorption from affecting product quality.
At low temperatures (below 5°C), the product may solidify or become viscous, which is a normal physical change and does not affect its chemical properties or performance. Should this occur, simply warm the product gently and stir thoroughly before use to restore its original state.
| Storage Element | Specific Requirements |
|---|---|
| Storage Environment | Cool, dry, and well-ventilated warehouse, away from heat sources, sparks, and open flames |
| Temperature Control | Recommended long-term storage temperature: 5°C to 40°C |
| Container Material | Carbon steel, stainless steel, high-density polyethylene (HDPE) containers; original container is best |
| Container Sealing | Keep containers tightly closed, reseal immediately after opening |
| Incompatible Substances | Store separately from strong oxidizers (such as peroxides, high-concentration nitric acid, perchlorates, etc.) |
| Moisture Prevention | Avoid exposure to high humidity to prevent product from absorbing moisture |
| Low Temperature Handling | Solidification or viscosity at low temperature is a normal physical change; gently warm and stir before use |
When taking product, it is recommended to follow the "first-in, first-out" principle to ensure product use within its optimal shelf life. Immediately close the container opening after each extraction to reduce product exposure to air. If the product has been stored for a long time and is to be used in formulations with strict requirements for transparency or color (such as cosmetic creams), it is recommended to conduct a small sample evaluation first, and only use in bulk after confirming there are no abnormalities in appearance and performance.