Peregal O-15 (fatty alcohol polyoxyethylene (15) ether) appears as a white to slightly yellow paste or solid at room temperature (softening point approximately 40-45°C), with an active content ≥99%. It is a nonionic surfactant with a high HLB value (14.5). Due to its physical form and excellent hydrophilicity, it usually requires pre-dispersion before use: slowly add the product to warm water at 50-60°C while stirring to prepare a 10%-20% stock solution; alternatively, it can be directly added to the formulation system that needs heating, where it will naturally melt and disperse as the temperature rises above 40°C. The product has excellent chemical stability, resisting acids, alkalis (up to 200g/L NaOH solution), and hard water, and exhibits good compatibility with nonionic, anionic, cationic, and zwitterionic surfactants.
As a multifunctional nonionic emulsifier, Peregal O-15 plays differentiated roles in various industries. In textile dyeing and printing, it is primarily utilized for its outstanding leveling, retarding, and penetrating properties, ensuring uniform dye uptake on fibers. In cleaning applications, it leverages its strong emulsifying and degreasing ability on mineral oils and animal/vegetable oils to provide detergency. In cosmetics and pesticide formulations, it acts as an O/W emulsifier to construct stable emulsion systems. The actual dosage should be determined through small-scale experiments considering factors such as the characteristics of the formulation system, processing temperature (cloud point 80-90°C defines its optimal temperature range), target effect, and economics.
Since the product has a moderate viscosity in the molten state (kinematic viscosity approximately 150 mm²/s at 50°C), attention should be paid to heat preservation during feeding and pipeline transportation to prevent solidification and equipment blockage due to temperature drop. Additionally, this product is low-foaming, making it particularly suitable for industrial cleaning and textile processing scenarios where excessive foam is undesirable.
| Parameter | Value/Description |
|---|---|
| Appearance | White to slightly yellow paste or solid |
| Active Content | ≥99% |
| HLB Value | 14.5 |
| Cloud Point (1% aqueous solution) | 80-90°C |
| Softening Point | Approximately 40-45°C |
| Ionic Type | Nonionic |
| pH Value (1% aqueous solution) | 5.0-7.0 |
| Water Solubility | Easily soluble in water |
| Alkali Resistance | Can withstand 200g/L NaOH |
| Foam Characteristics | Low foaming |
The following are reference dosage ranges based on general industry experience (Guoli Chemical database does not have precise dosage data for each field; small-scale verification is recommended before actual application):
| Application Field | Functional Role | Recommended Dosage (Reference) | Usage Points |
|---|---|---|---|
| Textile Dyeing Leveling | Leveling agent/Retarding agent | 0.5-3 g/L (dyebath) | Pre-dissolve in warm water at a 1:10 ratio before adding to dyebath. Suitable for medium-high temperature dyeing processes with reactive, disperse, acid, and other dyes. |
| Industrial Hard Surface Cleaning | Degreaser/Emulsifier | 1%-5% (total formulation) | Combine with alkali agents, chelating agents, etc. Suitable for cleaning temperatures of 40-80°C. Outstanding removal of mineral oils and animal/vegetable oils. |
| Cosmetic Creams/Lotions | O/W Emulsifier | 0.5%-3% | Usually used in combination with low-HLB emulsifiers to build a stable emulsion system. Increase proportion appropriately when oil phase content is high. |
| Fragrance Solubilization | Solubilizer | 0.5%-2% | Suitable for clear water-based formulations. Pre-mix with fragrance before adding to water phase. |
| Pesticide Emulsifiable Concentrate/Emulsion in Water | Emulsifier | 3%-8% (in EC) | Often used in combination with anionic emulsifiers (e.g., agricultural emulsifier 500#) to achieve optimal spontaneous emulsification. |
| Leather Degreasing/Soaking | Wetting degreasing agent | 0.5%-2% (based on hide weight) | Used during the soaking stage to promote hide softening and removal of natural fats. |
| Paper Rewetting | Rewetting agent | 0.1%-0.5% | Applied by spraying or coating onto paper surface. |
| Waterborne Coatings/Inks | Wetting and dispersing aid | 0.1%-0.5% (total formulation) | Add before grinding to aid wetting and stable dispersion of pigments and fillers. |