Overview
Polyethylene glycol monooleate ( CAS 9004-96-0 ), commonly referenced as PEG monooleate, is a nonionic ester produced from oleic acid and polyethylene glycol. It functions as an emulsifier, lubricant, and dispersing agent across a broad range of industrial and personal care applications.
Glycol oleate is a recognized alternative name used in certain formulation and textile contexts. In personal care and cosmetics, PEG monooleate acts as an emulsifier and solubilizer in creams, lotions, and cleansing formulations.
This chemical helps to stabilize oil-in-water systems effectively. Textile and leather processors use it as a fiber lubricant and softening agent, reducing friction during spinning, weaving, and finishing operations.
In metalworking fluids, it contributes lubricity and emulsification performance in cutting and rolling oil formulations. Food-grade variants are evaluated for use as emulsifiers and carriers in food processing applications.
These applications are common where nonionic surfactant functionality is required. Polyethylene glycol monooleate is supplied as a liquid or paste, depending on the molecular weight of the PEG chain used in production.
It is available across a range of PEG grades, commonly PEG-200, PEG-400, and PEG-600 variants, with the HLB value shifting accordingly. Technical and industrial grades are standard for most manufacturing needs.
Food-grade and cosmetic-grade specifications are available from select manufacturers. These products meet rigorous industry requirements for purity and performance in sensitive consumer applications and specialized industrial processes.
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Physical Properties
| Boiling Point | >260 °C(lit.) |
| Density | 1.034 g/cm³ |
| Flash Point | 113 °C |
| Appearance | Liquid |
| Color | Colourless to Light Beige |
| Form | Oil |
| Water Solubility | toluene, ethanol and acetone: soluble (dispersible in water) |
| Refractive Index | n20/D 1.468 |
| Log P | 7.185 (est) |
Safety & Handling
Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation Precautionary Statements P264 Wash … thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P321 Specific treatment (see … on this label). P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 3907990100 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 9004-96-0
- EC Number
- 500-015-7
- Mol. Weight
- 326.5
- HS Code
- 3907990100
- Category
- Polymers & Resins