Peregal O-25 is a nonionic surfactant produced by the condensation of natural fatty alcohol with ethylene oxide. Its core characteristics include excellent emulsifying and dispersing ability, outstanding leveling and retarding properties, high chemical stability, and broad application compatibility.
Detailed Description
Peregal O-25, with the chemical name fatty alcohol polyoxyethylene (25) ether (CAS number: 68439-49-6), appears as a white to slightly yellow flake or block solid, easily soluble in water. Its molecular structure contains a longer polyoxyethylene chain segment, and the ether bond is highly stable, endowing the product with a series of outstanding physicochemical properties. The HLB value is approximately 16.0–17.0, classifying it as a hydrophilic nonionic surfactant with a cloud point above 100°C, enabling it to maintain excellent surface activity under high-temperature conditions.
The most notable feature of this product is its excellent emulsifying ability — it can effectively reduce the oil-water interfacial tension, providing strong emulsifying and dispersing effects on mineral oils, animal and vegetable oils, and waxes, forming stable oil-in-water (O/W) emulsions. Meanwhile, its outstanding leveling and retarding properties allow it to slow the dye uptake rate in textile dyeing, preventing color spots and significantly improving dye evenness and penetration. In addition, Peregal O-25 possesses extremely high chemical stability, resistant to acids, alkalis, hard water, and metal salts, and can be widely compounded with anionic, cationic, and amphoteric surfactants, offering strong compatibility. This nonionic characteristic makes it particularly reliable in complex industrial formulation systems.
Technical Parameters
| Parameter Item | Typical Index |
|---|
| Product Name | Peregal O-25 |
| Chemical Name | Fatty alcohol polyoxyethylene (25) ether / Stearyl alcohol polyoxyethylene (25) ether |
| CAS Number | 68439-49-6 |
| Product Type | Nonionic surfactant |
| Appearance | White to slightly yellow flake or block solid |
| HLB Value | approx. 16.0–17.0 |
| Cloud Point | >100°C |
| Water Solubility | Easily soluble in water (dissolution recommended in hot water above 60°C) |
| Chemical Stability | Resistant to acids, alkalis, hard water, and metal salts |
| Ionicity | Nonionic |
| Packaging | 25 kg/bag (woven bag lined with plastic bag) |
| Shelf Life | 24 months (under cool, dry, and ventilated conditions) |
Application Suggestions
Based on the above characteristics of Peregal O-25, its main application areas and suggestions are as follows:
- Textile Dyeing and Printing: As a leveling agent and soaping agent, recommended dosage 0.2–1.0 g/L, added to the dyebath at the beginning of dyeing, effectively preventing color spots and shade differences; as a soaping agent, treat at 80–95°C for 10–20 minutes, effectively removing loose color without redeposition.
- Industrial Cleaning and Metal Degreasing: Combined with soda ash or phosphate auxiliaries, soak or spray clean at 50–80°C, providing significant removal of oil stains on metal surfaces, suitable for spray, ultrasonic, and high-pressure hot water cleaning processes.
- Cosmetics and Personal Care Products: As an O/W emulsifier and solubilizer, recommended dosage 0.5%–5.0%, suitable for creams, lotions, shampoos, shower gels, etc., with low irritation, can formulate stable transparent product systems.
- Pesticide Formulation Processing: Used in combination with anionic emulsifiers, suitable for EW (emulsion in water), ME (microemulsion), and WP (wettable powder) formulations, enhancing emulsion stability and spreading.
- Paper Industry: Used as a wetting agent and softener, promoting uniform fiber dispersion and improving paper formation and smoothness.
Precautions
- This product is solid; it is recommended to dissolve by stirring in hot water above 60°C, or pre-prepare a stock solution for precise metering and addition.
- Recommended storage temperature is 5°C to 40°C. Below 5°C, turbidity or solidification may occur; after warming to room temperature and stirring uniformly, it can still be used.
- During handling, wear chemical safety goggles, protective gloves, and protective clothing to avoid direct contact with eyes and skin (GHS classification: Causes skin irritation H315, Causes serious eye irritation H319).
- Harmful to aquatic life (H402/H412); it is strictly prohibited to discharge the product directly into water bodies or the environment.
- Store away from strong oxidizers, strong acids, and strong alkalis; keep containers tightly closed to prevent moisture absorption.
