Span S-20 lauric acid (sorbitan monolaurate) is a nonionic surfactant. Proper storage is crucial for maintaining its emulsifying properties and performance. The product should always be kept in a dedicated warehouse that is cool, dry, and well-ventilated, away from heat sources, sparks, and open flames to prevent deterioration or safety hazards.
This product is flammable but not explosive. Under normal storage conditions, it is chemically stable. However, care should be taken to avoid storing it together with incompatible substances such as strong oxidizers, strong acids, and strong bases to prevent adverse reactions. If long-term storage is required, it is recommended to record the receiving date upon arrival and follow the "first in, first out" inventory management principle to ensure the product is used within its optimal period.
| Storage Requirement | Specific Description |
|---|---|
| Temperature Range | 5°C to 35°C, avoid freezing or continuous high temperature |
| Environmental Conditions | Cool, dry, well-ventilated |
| Container Sealing | Reseal immediately after use to prevent vapor buildup and contamination |
| Recommended Packaging Materials | Stainless steel, polyethylene, or lined iron drums, avoid copper and its alloys |
| Incompatible Substances | Strong oxidizers, strong acids, strong bases |
| Shelf Life | Not exceeding 24 months from the date of manufacture (refer to the product Certificate of Analysis) |
| Other Requirements | Place on corrosion-resistant trays to prevent spill spread; regularly check container sealing |
During routine operations, personnel should pay attention to the following: Reseal the container immediately after product withdrawal to avoid prolonged exposure that could lead to contamination or moisture absorption, affecting the product's emulsifying properties. For liquid transfer, use closed piping or take grounding measures to prevent static accumulation. Containers should always be placed on corrosion-resistant trays to effectively contain accidental spills and prevent spreading to the floor and drainage system.
If the product becomes cloudy or appears layered after storage at low temperatures, this is a normal physical phenomenon. It is recommended to slowly bring the product back to room temperature (15°C~25°C) before use and appropriately stir or recirculate it to restore uniformity, without affecting its emulsifying properties.