Emulsifier S-185/O-5 (fatty alcohol polyoxyethylene ether) is a nonionic surfactant, appearing as a white to light yellow paste with relatively stable chemical properties. Under proper storage conditions, the product can maintain its core properties such as emulsification, wetting, and dispersion for a long period. However, special attention is required as the product is hygroscopic. If not properly sealed after opening, it may absorb moisture from the air, leading to changes in active ingredient content and affecting performance.
Regarding the shelf life, the product database does not provide specific data. Generally, for nonionic surfactant products, under unopened and suitable storage conditions, the shelf life is usually 1 to 2 years. However, the exact shelf life should be based on the effective date indicated on the product quality certificate (COA) issued by Haian Guoli Chemical Co., Ltd. or on the outer packaging label. It is recommended to confirm the specific batch expiration date with the salesperson during procurement.
| Storage Element | Specific Requirements |
|---|---|
| Storage Temperature | 5～40 °C, avoid extreme high or low temperatures |
| Light Requirement | Avoid direct sunlight and strong light exposure |
| Environmental Requirement | Cool, dry, well-ventilated warehouse, away from moisture |
| Container Requirement | Keep original packaging sealed, use stainless steel or plastic-lined drums and other corrosion-resistant containers |
| Incompatible Substances | Strong oxidizers, strong acids, strong bases, and other incompatible chemicals |
| Ignition Source Management | Away from heat sources, sparks, and open flames (product is not flammable, flash point >150°C, but general chemical storage regulations should still be followed) |
| Opening Management | Use as soon as possible after opening, immediately reseal remaining material for storage |
To ensure the product performance is always at its best, it is recommended to follow the "first in, first out" principle, prioritizing the use of earlier batch inventory. After each use, check the container seal to prevent moisture and impurities from entering the air. If the product shows abnormal phenomena such as layering, discoloration, or odor after long-term storage, it is recommended to conduct a small sample test to confirm performance before deciding whether to continue use.