Polyether L-63, full name polyoxypropylene polyoxyethylene glycerol ether, belongs to the Poloxamer class of nonionic surfactants. This product has an HLB value between 7 and 8, a cloud point of approximately 34°C (1% aqueous solution), good solubility in water, and is also soluble in organic solvents such as ethanol and ether. The product has an active matter content ≥99%, solid content ≥99%, moisture ≤0.05%, free alcohol ≤0.5%, and is of very high purity.
As an important intermediate in the polyurethane industry, the hydroxyl value of Polyether L-63 is between 54 and 58 mgKOH\/g, which determines its reactivity in polyurethane reactions. The product has an acid value ≤0.05 mgKOH\/g, iodine value ≤1, unsaturation ≤0.01 mmol\/g, indicating stable chemical properties and few side reactions. The surface tension is approximately 38 mN\/m (0.1% aqueous solution, 25°C), and the critical micelle concentration is approximately 0.1% (w\/v), exhibiting excellent interfacial activity.
In terms of safety, the flash point of this product is greater than 220°C, making it a non-flammable liquid; the oral LD50 (rat) is greater than 5000 mg\/kg, indicating it is practically non-toxic; it is non-irritating to the skin and may cause slight temporary irritation to the eyes; it is readily biodegradable and considered an environmentally friendly product.
| Parameter Item | Technical Indicator |
|---|---|
| Product Name | Polyether L-63 (Polyether Polyol L-63) |
| Full Chemical Name | Polyoxypropylene Polyoxyethylene Glycerol Ether |
| CAS Number | 9003-11-6 |
| Molecular Formula | C3H5O[(C3H6O)x(C2H4O)yH]3 |
| Molecular Weight | ~3000 |
| Ionic Type | Nonionic |
| Appearance | Colorless to slightly yellow transparent viscous liquid |
| Active Matter Content | ≥99% |
| Solid Content | ≥99% |
| Density (25°C) | Approximately 1.03 g\/cm³ |
| Kinematic Viscosity (25°C) | Approximately 400 mm²\/s |
| Low Shear Viscosity (25°C) | Approximately 400 mPa·s |
| Refractive Index (25°C) | Approximately 1.452 |
| Pour Point | Approximately -30°C |
| HLB Value | 7~8 |
| Cloud Point (1% Aqueous Solution) | Approximately 34°C |
| pH Value (1% Aqueous Solution) | 5.0~7.0 |
| pH Value (5% Aqueous Solution) | 5.0~7.0 |
| Hydroxyl Value | 54~58 mgKOH\/g |
| Acid Value | ≤0.05 mgKOH\/g |
| Iodine Value | ≤1 |
| Unsaturation | ≤0.01 mmol\/g |
| Moisture | ≤0.05% |
| Free Alcohol | ≤0.5% |
| Surface Tension (0.1% Aqueous Solution, 25°C) | Approximately 38 mN\/m |
| Critical Micelle Concentration (CMC) | Approximately 0.1% (w\/v) |
| Flash Point (Closed Cup) | >220°C |
| Solubility | Soluble in water, ethanol, ether and other organic solvents |
| Foaming Characteristics | Low foaming |
| Penetration Power | Good |
| Alkali Resistance | Good |
| Hygroscopicity | Low |
| Chemical Stability | Stable, no decomposition under normal storage conditions |
| Heavy Metals (as Pb) | ≤10 mg\/kg |
| Arsenic (As) | ≤2 mg\/kg |
| Packaging Specifications | 50kg plastic drum \/ 200kg plastic drum \/ IBC tote |
The core application field of Polyether L-63 is the polyurethane industry. Based on its hydroxyl value of 54~58 mgKOH\/g and excellent surface activity, it is particularly suitable for the following scenarios:
As a nonionic surfactant, its HLB value of 7~8 also makes it suitable for use as an industrial auxiliary agent in emulsification, wetting and leveling.