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L61
Jienuo
Propylene Glycol Block Polyether L61 (CAS 9003-11-6), also called PEO-PPO block polyether, is an industrial-grade nonionic surfactant. It functions as a high-efficiency emulsifier, dispersant, and wetting agent, valued for low foam, high stability, and good compatibility. Widely applied in pesticide formulations (to emulsify active ingredients), coatings, detergents, and cosmetics, it enhances product uniformity and performance. Its technical-grade purity ensures reliable results in industrial manufacturing, making it a cost-effective choice for B2B procurement.
Product Advantage
Ultra-Low Foam Performance
It delivers exceptional low-foam characteristics (ideal for low-foam detergent systems), reducing foam interference in production processes—critical for high-efficiency cleaning or industrial operations where foam buildup is problematic. Its stable foam control aligns with strict industrial application standards.
Superior Stability & Compatibility
With a pH range of 5.0–7.0 and ≤1.0% moisture, it maintains high stability in diverse environments (e.g., pesticide emulsions, metalworking fluids) and exhibits good compatibility with other additives, ensuring consistent performance in complex formulations.
Precise Technical Specifications
Boasting a cloud point of 17–21℃ (1% aqueous solution) and HLB value 3, it is tailored for specific low-HLB application scenarios, enabling targeted performance optimization (e.g., as an emulsifier in oil-based systems).
Cost-Effective Industrial Grade
As a technical-grade surfactant, it balances high purity (meeting chemical formulation requirements) with competitive pricing, making it a cost-efficient choice for large-scale B2B procurement (e.g., pesticide, detergent manufacturing).
Technical Specifications
Parameter | Specification |
Chemical Composition | Polyoxyethylene-polyoxypropylene block copolymer |
Type | Nonionic surfactant |
Appearance (25℃) | Colorless to pale yellow transparent liquid |
Cloud Point (1% Aqueous Solution) | 17–21℃ |
Moisture Content | ≤1.0% |
pH Value (1% Aqueous Solution) | 5.0–7.0 |
HLB Value | 3 |
CAS Number | 9003-11-6 |
Purity Grade | Technical/Industrial grade |
Solubility | Dispersible in water; miscible with most organic solvents |
Stability | Stable under normal temperature and pressure; avoid strong acids/bases |
Product Uses
Low-Foam Detergents & Defoamers
It is widely used to formulate low-foam, high-efficiency synthetic detergents. In cleaning processes (e.g., industrial equipment washing), it reduces foam while maintaining strong decontamination, preventing foam-related operational issues.
Pesticide Formulations
As a key emulsifier in pesticide formulations, it stabilizes active ingredients in emulsifiable concentrates, ensuring uniform dispersion and enhancing pesticide effectiveness—critical for agrochemical manufacturing.
Industrial Processing Aids
It acts as an emulsifier in metalworking fluids and a dispersant in latex coatings, improving product uniformity and process efficiency. It also functions as a defoamer in industrial systems (e.g., circulation fluids) to avoid foam blockages.
To use, blend L61 with target formulations (e.g., pesticides, detergents) under normal temperature (25℃) and stir evenly. For pesticide emulsions, add 3–5% (by weight) of L61 to the active ingredient mixture; for detergents, adjust dosage based on foam control needs (typically 2–4%). Store in a dry, ventilated area to maintain stability.
FAQ
What is L61's shelf life?
It has a 2-year shelf life when stored in sealed iron drums (200kg/50kg) in dry, ventilated conditions, with no quality degradation within this period.
Can L61 be used in food-related products?
No, it is an industrial-grade surfactant and is not suitable for food, pharmaceutical, or cosmetic applications requiring food-grade materials.
How does L61 perform in low-temperature environments?
Its cloud point is 17–21℃, so it may thicken at temperatures below 17℃—warm gently (≤40℃) to restore fluidity before use.
