What is emulsifier S-185/O-5? What are its main applications?

Emulsifier S-185/O-5 is a nonionic fatty alcohol polyoxyethylene ether surfactant, widely used in pesticide formulations, industrial cleaning, textile dyeing and finishing, metalworking, leather processing, and coatings and inks industries, renowned for its excellent emulsifying, wetting, and dispersing properties.

Detailed Description

Emulsifier S-185/O-5, chemically known as fatty alcohol polyoxyethylene ether (aliases: Polyoxyethylene (35) stearyl ether, Stearyl polyether-35, PEG-35 stearyl ether), CAS number 68439-49-6, belongs to nonionic surfactants. The product appears as a white to light yellow paste, characterized by high active content and low moisture, meeting stringent industrial formulation requirements.

This product exhibits excellent emulsification and dispersion efficiency, ensuring uniform and stable multiphase systems; it also possesses outstanding wetting and penetration properties, accelerating the spreading of treatment liquids on substrate surfaces. Its notable chemical resistance includes good tolerance to acids, alkalis, and hard water, and it demonstrates good compatibility with anionic, cationic, and other nonionic surfactants, allowing flexible formulation and wide applicability. It maintains stable performance even in acidic, alkaline, and hard water environments, effectively reducing the dosage of auxiliary agents.

As a high-quality product from Haian Guoli Chemical Co., Ltd., emulsifier S-185/O-5 leverages its multifunctional emulsifying, wetting, dispersing, and solubilizing capabilities to effectively lower interfacial tension and enhance system stability, making it an indispensable high-efficiency additive component in industrial formulations.

Technical Parameters

Application Recommendations

Emulsifier S-185/O-5 can be used as a high-efficiency emulsifier, wetting agent, and dispersant, widely serving the following six industries:

• Pesticide Formulations: Suitable for emulsifiable concentrates, emulsions, microemulsions, and other formulations, providing excellent emulsifying and dispersing properties, enhancing formulation stability, and ensuring uniform distribution of active ingredients during dilution and application.
• Industrial Hard Surface Cleaners: Exhibits good emulsifying and stripping ability for mineral oils, animal and vegetable oils, and other greases, improving cleaning efficiency, applicable to hard surfaces such as metal and plastic.
• Metalworking Fluids: Acts as an emulsifier and lubricating component, helping to form stable emulsions, reducing friction and wear, while improving cooling and anti-corrosion properties.
• Textile Dyeing and Finishing Auxiliaries: Can be used to formulate scouring agents, leveling agents, etc., effectively dispersing oil stains and impurities on fibers, promoting uniform dye uptake, and improving dyeing and finishing quality.
• Leather Degreasing and Fatliquoring Agents: Efficiently emulsifies natural oils in degreasing processes, and promotes uniform oil penetration in fatliquoring processes, enhancing leather softness and feel.
• Coating and Ink Emulsion Dispersion: Helps disperse resins and pigments stably in the aqueous phase, improving leveling, storage stability, and film-forming properties of coatings and inks.

Precautions

Safety Warning: This product is an industrial chemical. It may cause skin and eye irritation (Category 2). Inhalation of vapors or mists may cause respiratory tract irritation. Harmful if swallowed (Category 4). Toxic to aquatic life with long-lasting effects. Wear protective gloves, goggles, and protective clothing during handling. Use in well-ventilated areas. Avoid release into the environment.

Storage Recommendations: Keep container tightly closed. Store in a cool, dry, well-ventilated warehouse. Recommended temperature range: 5–40°C. Avoid direct sunlight. Keep away from strong oxidizing agents and high heat sources. Use promptly after opening; reseal remaining material. 

First Aid Measures: Skin contact: Wash immediately with plenty of running water and soap. Eye contact: Rinse with plenty of running water for at least 15 minutes. Ingestion: Do NOT induce vomiting; seek medical attention immediately. Inhalation: If discomfort occurs, move to fresh air. If irritation persists, seek medical attention.