PEG200MO, with the full chemical name Polyethylene Glycol 200 Monooleate (alias PEG-4 Oleate, CAS No.: 9004-96-0), belongs to the class of nonionic surfactants. It is produced by esterification of polyethylene glycol (PEG200) with natural oleic acid. Its molecular structure contains a hydrophilic polyoxyethylene chain and a lipophilic oleic acid fatty chain, endowing the product with excellent amphiphilic properties. The product appears as a light yellow to yellow viscous liquid with good fluidity and formulation compatibility.
As a nonionic surfactant, the greatest advantage of PEG200MO lies in its outstanding emulsifying ability — it can effectively reduce the oil-water interfacial tension and form a stable and fine emulsion system, especially suitable for oil-in-water (O/W) emulsion formulations. Additionally, it also exhibits excellent wetting and spreading properties, as well as powder dispersing and suspending capabilities. It maintains stable performance over a wide pH range and under hard water conditions, and can be well compounded with anionic, cationic, and other nonionic surfactants. Based on natural fatty acid sources, the product has low skin irritation and good safety.
Personal Care & Cosmetics: Used as a core emulsifier in formulations of creams, lotions, cleansing oils, body washes, etc., helping to form a delicate and stable emulsion texture, imparting a comfortable skin feel and good moisturizing properties, and facilitating the uniform distribution of active ingredients.
Textile Industry: Applied in spinning oil and leveling agent formulations, effectively reducing fiber friction coefficient, improving fiber spinnability and lubricity, promoting uniform dispersion and slow dyeing of dyes, thereby enhancing textile processing efficiency and fabric quality.
Metalworking Fluids: As a key component of emulsified cutting fluids and rust preventives, providing a stable lubricating emulsion, endowing the working fluid with excellent anti-rust protection, reducing tool wear, and improving machining accuracy and surface finish.
Pesticide Formulations: Used as a crucial adjuvant in emulsion in water (EW) and microemulsion (ME) formulations, helping to uniformly disperse and solubilize pesticide active ingredients, improving dilution stability of the formulation, enhancing wetting and spreading of the spray liquid on plant leaf surfaces, and increasing field efficacy.
| Parameter Item | Specification Description |
|---|---|
| Product Name | PEG200MO Polyethylene Glycol 200 Monooleate |
| CAS No. | 9004-96-0 |
| Aliases | PEG-4 Oleate, Polyoxyethylene (4) Monooleate, PEG-4 Oleate |
| Product Type | Nonionic Surfactant |
| Appearance | Light yellow to yellow viscous liquid |
| Ionic Type | Nonionic |
| Emulsion System Type | Suitable for O/W (oil-in-water) emulsions |
| Open Cup Flash Point | >200°C |
| Acute Oral Toxicity LD₅₀ (Rat) | >5000 mg/kg (Low toxicity) |
| Storage Temperature | Recommended 5°C to 35°C |
| Shelf Life | At least 12 months under recommended storage conditions |
The recommended application of PEG200MO in formulations should be adjusted according to the specific system. In cosmetic creams/lotions, it is typically used as a primary or auxiliary emulsifier; the recommended dosage should be optimized based on the oil phase ratio and desired viscosity of the formulation. In metalworking fluids, it can be compounded with anionic emulsifiers to enhance emulsion stability. In pesticide formulations, as a key emulsifying component for EW (emulsion in water), it is recommended to be used in conjunction with appropriate auxiliary emulsifiers to achieve optimal dilution stability. Due to its nonionic nature, it can be flexibly compounded with various ionic types of surfactants to meet the requirements of multi-component systems.