Peregal O-25 (fatty alcohol polyoxyethylene (25) ether, CAS No.: 68439-49-6) is a nonionic surfactant, appearing as a white to slightly yellow flake or lump solid, with an HLB value of approximately 16.0–17.0. It exhibits excellent emulsifying, dispersing, leveling, and scouring properties. Due to the high stability of the ether bonds in its molecular structure, it is resistant to acids, alkalis, hard water, and metal salts, and can be widely compounded with anionic, cationic, and amphoteric surfactants.
Since this product is in solid form, it must be dissolved before use. It is recommended to dissolve it by stirring in hot water above 60°C, or it can be added directly to a high-temperature working solution for dissolution. For accurate metering and addition, it is advisable to prepare a stock solution of a certain concentration in advance. At low temperatures (below 5°C), turbidity or solidification may occur, but it can still be used normally after warming to room temperature and stirring thoroughly, without affecting product quality.
In practical applications, the dosage of Peregal O-25 should be flexibly adjusted according to specific process requirements and system characteristics. The following are recommended dosage ranges for various fields (data source: Guoli Chemical Product Database).
| Parameter | Value |
|---|---|
| Product Name | Peregal O-25 |
| Chemical Name | Fatty alcohol polyoxyethylene (25) ether |
| CAS No. | 68439-49-6 |
| Ionic Type | Nonionic surfactant |
| Appearance | White to slightly yellow flake or lump solid |
| HLB Value | Approximately 16.0–17.0 |
| Cloud Point | >100°C |
| Water Solubility | Easily soluble in water (requires hot water above 60°C) |
| Chemical Stability | Resistant to acids, alkalis, hard water, and metal salts |
| Compatibility | Can be compounded with anionic, cationic, and amphoteric surfactants |
Textile Dyeing and Printing — Leveling Agent: Add to the dye bath at the initial stage of dyeing, recommended dosage is 0.2–1.0 g/L (based on working solution), adjust according to dye concentration and fabric type. The long polyoxyethylene chain in the Peregal O-25 molecule can effectively inhibit dye strike, delay dyeing rate, prevent color spots and color differences, and has excellent leveling effect for direct dyes, vat dyes, acid dyes, and disperse dyes.
Textile Dyeing and Printing — Soaping Agent/Anti-staining Agent: In the post-treatment of reactive dye printing, utilizing its high temperature and high cloud point (>100°C) characteristics, treat at 80–95°C for 10–20 minutes to effectively remove unfixed dyes without redeposition, maintaining bright fabric colors.
Cosmetics and Personal Care Products: As an O/W emulsifier and solubilizer, recommended dosage is 0.5%–5.0%, suitable for creams, lotions, shampoos, body washes, and makeup removers. Dissolve in the oil phase or water phase before emulsification to efficiently disperse and stabilize oils, fragrances, and other water-insoluble components, giving the product a fine texture and good spreadability.
Metal Cleaning and Degreasing: Combined with soda ash or phosphate auxiliaries, soak or spray clean at 50–80°C, significantly removing oil stains from metal surfaces. Peregal O-25 can quickly emulsify mineral oil, paraffin, vegetable oil, and mechanical grease, forming a stable oil-in-water (O/W) emulsion, suitable for spray, ultrasonic, and high-pressure hot water cleaning processes.
Pesticide Formulation: As a nonionic emulsifier and wetting penetrant, used in combination with anionic emulsifiers to adjust the hydrophilic-lipophilic balance of the mixed emulsifier, suitable for preparing emulsions in water (EW), microemulsions (ME), and wettable powders (WP). The specific dosage should be determined by formulation trials (no fixed recommended ratio available).
Paper Industry: Used as a wetting agent and softener to reduce pulp surface tension, promote even fiber dispersion, and as an auxiliary emulsifier in coated paper to stabilize the coating system. The specific dosage should be determined by process condition trials.