How to store Emulsifier FM (Triethanolamine Monooleate)? What is the shelf life?

Emulsifier FM should be stored in a cool, dry, well-ventilated place at 5-35°C in a sealed container. The shelf life in the original unopened container is typically 12 months.

Detailed Description

Emulsifier FM (Triethanolamine Monooleate) is a non-ionic surfactant, appearing as an amber to brown viscous liquid. Although the product is chemically stable under general conditions, proper storage is crucial for maintaining its excellent emulsifying, wetting, and dispersing properties. The product is hygroscopic and temperature-sensitive, so the storage conditions recommended by the supply chain must be strictly followed.

Regarding the shelf life, according to the Guoli Chemical database, the product itself does not directly provide fixed shelf life data. However, based on industry practices and the stability rules of such surfactant ester compounds, under the strict compliance with storage requirements of 5-35°C, cool, dry, and sealed, it is recommended to use the unopened original packaging of Emulsifier FM within 12 months from the date of manufacture. After opening, minimize contact with air and moisture and use as soon as possible.

After the recommended storage period, the product may not immediately become ineffective, but slight quality degradation such as color deepening, viscosity changes, or decreased emulsification efficiency may occur. Before using long-stored products, it is recommended to sample and test key indicators (such as pH value, acid value, hydroxyl value, and emulsion stability) to confirm they meet requirements before putting them into production, so as to ensure the quality of downstream products.

Storage Conditions

Application Recommendations

• Pre-use Inspection: If the product appears cloudy or layered at low temperatures, it is a physical phenomenon. Move the container to a warm environment (not exceeding 35°C) to slowly warm up and stir evenly. It can be used normally after returning to its original state.
• Sub-packaging Transfer: Use clean and dry equipment and containers for sub-packaging. Seal the original barrel and sub-packaging containers immediately after operation.
• Long-term Inventory Management: Establish inventory records and follow the "First In, First Out" (FIFO) principle. For products in stock for more than 12 months, it is recommended to retest the pH value (1% aqueous solution 5.0~9.0), acid value (≤5 mgKOH/g), and emulsion stability. Use after confirming no significant degradation.

Precautions

• The product is classified as a skin sensitizer (H317). Avoid direct skin contact during storage and handling, and keep away from food and beverages.
• Storage areas should be equipped with spill emergency response materials, such as inert absorbent materials (sand, vermiculite).
• It is strictly prohibited to discharge the product into sewers, surface water, or groundwater; waste product should be disposed of as industrial hazardous waste by a qualified organization.