Polyoxyethylene stearate SG-9 (PEG-9 stearate) appears as a white to slightly yellow waxy solid at room temperature. Its storage conditions directly affect the product's quality stability and performance. This product is not classified as a hazardous chemical, and there are no special risks under conventional storage, but improper storage conditions may cause product caking, discoloration, moisture absorption and deterioration, or performance degradation.
The storage environment should be kept cool, dry and well-ventilated, avoiding direct sunlight and moisture. The warehouse should be kept away from fire sources and heat sources, as high temperatures may cause the product to soften, cake, or even thermally decompose. At the same time, it must be stored separately from incompatible substances (such as strong oxidizing agents, strong acids, etc.) to prevent harmful reactions. Containers must be kept tightly closed to prevent moisture absorption and contamination of the product.
The storage area should be equipped with appropriate spill containment facilities and have containment materials such as inert absorbents available to deal with accidental leaks. The warehouse should implement a limited-quantity storage management system, and unauthorized personnel should not enter. Contaminated work clothes should not be taken out of the workplace and must be cleaned before reuse.
| Storage Parameter | Specific Requirements |
|---|---|
| Storage Temperature | Recommended not to exceed 35°C, avoid large temperature differences |
| Environmental Requirements | Cool, dry, well-ventilated |
| Lighting | Avoid direct sunlight |
| Container Requirements | Keep tightly closed; use stainless steel, polyethylene, or fiber drums lined with plastic |
| Prohibited Substances | Keep away from incompatible substances such as strong oxidizing agents and strong acids |
| Keep Away From | Keep away from fire sources and heat sources |
| Safety Facilities | Equip with spill containment facilities and inert absorbents |
SG-9 is used as an emulsifier and softener in various industries such as textiles, cosmetics, metalworking fluids, and pesticide formulations. In actual application and storage, it is recommended to follow the "first in, first out" principle. After opening, it should be used up as soon as possible to avoid prolonged exposure to the open air, which can lead to moisture absorption and deterioration. If the product becomes caked due to low temperatures, it can be gradually warmed in a warm environment and then used normally; direct heating is not recommended. For users making bulk purchases, it is advisable to store in batches upon warehousing and to regularly inspect the product's appearance to ensure stable quality.