What are the storage conditions for Polyether L-61?

Polyether L-61 should be stored in a cool, dry, and well-ventilated environment. The recommended storage temperature is 5–40°C. Keep the container tightly sealed, away from heat sources and incompatible materials.

Detailed Explanation

Polyether L-61 (Poloxamer 181), as a nonionic polymeric surfactant, has excellent chemical stability under normal storage conditions. To ensure product performance remains stable throughout its shelf life, the choice of storage environment is crucial. This product has strong hygroscopicity, so moisture prevention is a key concern in storage management. After opening, reseal as soon as possible to prevent moisture and impurities from entering and causing product deterioration.

The storage warehouse should be a dedicated space with impermeable flooring and equipped with spill containment facilities (such as dikes or trays) to handle accidental leaks. The storage area should be kept away from heat sources, sparks, open flames, and hot surfaces. This product is classified as a slightly hazardous substance to water (WGK 1). In case of a leak, it should be promptly controlled to prevent entry into sewers or surface waters.

In daily management, regularly check the integrity of containers and packaging. If damage is found, replace or handle properly in a timely manner. Empty containers may contain hazardous residues and should not be reused for other purposes without proper cleaning. Overall, as long as the above storage guidelines are followed, Polyether L-61 can maintain stable performance during its shelf life.

Technical Parameters

Application Recommendations

Polyether L-61 is widely used in polyurethane foam, industrial defoamers, water-based metalworking fluids, textile printing and dyeing auxiliaries, and pesticide formulations. In different application scenarios, the focus of storage management varies slightly:

• Polyurethane Foam Industry: Used as a foam stabilizer and emulsifier, special attention should be paid to moisture prevention, as increased moisture content can interfere with the metering accuracy and reaction process of the foam formulation.
• Industrial Defoamer Production: As an active component, maintain high product purity without impurity contamination. Keeping the container tightly sealed during storage is particularly critical.
• Pesticide Formulation Processing: Ensure the product has not undergone moisture absorption or deterioration to avoid affecting emulsification dispersion effects and formulation stability.

Packaging and Compatibility Guide

Precautions

• When handling, it is recommended to wear chemical safety goggles, chemical-resistant gloves (e.g., nitrile rubber, neoprene), and protective clothing.
• The storage area should be equipped with spill containment facilities, and the floor should be impermeable to prevent leaks from entering drains or soil.
• During transfer or dispensing, take anti-static measures such as grounding.
• Avoid drastic temperature changes to prevent product moisture absorption or deterioration.
• Empty containers may contain hazardous residues; do not use for other purposes without cleaning.