Emulsifier SG-100 (PEG-100 Stearate) is a nonionic surfactant with relatively stable chemical properties. It is not prone to adverse reactions with acids, alkalis, or hard water, but proper storage is crucial to maintain product performance and extend its service life. The product appears as a white to slightly yellow waxy solid, and the storage temperature should always be maintained above its melting point to ensure good fluidity and ease of use.
Regarding shelf life, according to the product database of Guoli Chemical, there is no officially labeled specific shelf life data for this product. However, referring to the industry standard for similar nonionic surfactants (polyethylene glycol stearates), under strict compliance with recommended storage conditions, the shelf life is typically 24 months (2 years) from the date of manufacture. It is recommended to follow the "first-in, first-out" inventory management principle and check the product appearance and properties before use. If the product shows obvious discoloration, odor, layering, or other abnormal phenomena, stop using it.
| Storage Element | Specific Requirements |
|---|---|
| Environmental Conditions | A dedicated warehouse or area that is cool, dry, and well-ventilated, away from direct sunlight, heat sources, and ignition sources |
| Temperature Range | 5°C to 40°C (should be maintained above the melting point or pour point; slight temperature fluctuations do not affect quality) |
| Container Material | Sealed original container, or stainless steel, polyethylene, or lined carbon steel storage tanks |
| Sealing Requirement | Reseal the container immediately after use to prevent moisture absorption and contamination |
| Isolation Requirement | Keep away from strong oxidizers, strong acids, strong alkalis, and other incompatible substances |
During storage, it is recommended to regularly check the container sealing and product appearance. After opening, use it as soon as possible to avoid prolonged exposure to air and moisture absorption. If the product is used in the production of cosmetics or personal care products, it is recommended to perform necessary microbiological tests after opening before use to ensure the safety of the final product. For customers purchasing in bulk, contact the Guoli Chemical sales team to confirm the production date and recommended use period for the specific batch.