Polyethylene Glycol Monooleyl Ether with CAS 9004-98-2
What is Polyethylene Glycol Monooleyl Ether?
Polyethylene glycol monooleyl ether (also known as Oleth, PEG Oleyl Ether, or commercially as Brij 98) is a versatile nonionic surfactant synthesized by ethoxylation of oleyl alcohol. Its unique amphiphilic structure — combining a hydrophilic polyethylene glycol (PEG) chain with a hydrophobic C18 oleyl group — enables exceptional emulsification, wetting, and solubilization across a wide range of industries.
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Product Advantages
- Superior Emulsification: The balanced HLB value ensures stable oil-in-water emulsions even under harsh processing conditions.
- Tunable Ethoxylation: Available in multiple EO degrees for precise control over water solubility, cloud point, and surface activity.
- Biocompatibility: Minimal cytotoxicity and no hemolytic activity make it the preferred choice for pharmaceutical and personal care formulations with strict safety requirements.
- Excellent Wetting Agent: Effectively lowers surface tension, ensuring thorough substrate wetting in textile, coating, and agricultural spray applications for maximum active ingredient utilization.
- Broad Solubility: Dissolves readily in both water and a wide range of organic solvents, simplifying formulation design and enabling use across aqueous and non-aqueous systems.
- Thermal Stability: Maintains structural integrity across a wide temperature range, making it reliable for high-temperature processing in industrial and pharmaceutical manufacturing.
Polyethylene Glycol Monooleyl Ether Quick details
- Chemical Name:Polyethylene glycol monooleyl ether
- CAS No.:9004-98-2
- EINECS: 500-016-2
- Molecular Formula:(C2H4O)nC18H36O
- Molecular weight:709.00344
- Appearance:Light yellow liquid or paste
- Synonyms:OLETH-20;OLETH-5;Emulsifier-20; Emulsifier-5;OLETH-8;OLETH-15;OLETH-24;OLETHOV-2、3、5、8、10、15、20、24
Polyethylene Glycol Monooleyl Ether Typical Properties
| Item | Specification | Results |
| Appearance | Light yellow liquid or paste | Conforms |
| Hydroxyl value(KOHmg/g) | 44~52 | 49.10 |
| PH | 5.0~7.0 | 6.55 |
| Assay | ≥99% | 99.93% |
| Conclusion | The results conforms with enterprise standards | |
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Polyethylene Glycol Monooleyl Ether Applications
Pharmaceutical & Drug Delivery
Acts as a solubilizer and bioavailability enhancer for poorly water-soluble APIs. Widely used in oral, topical, and injectable formulations to improve drug dissolution and absorption.
Personal Care & Cosmetics: Key emulsifier in creams, lotions, shampoos, and skin-care products. Its mild, non-irritating profile ensures compatibility with sensitive skin formulations.
Textile Processing: Functions as a wetting and leveling agent during dyeing and finishing, promoting uniform dye uptake and reducing chemical waste in textile manufacturing.
Food & Feed Industry: Approved as a food-grade emulsifier for use in baked goods, beverages, and feed supplements — ensuring consistent texture and shelf stability.
Paints & Coatings: Improves pigment dispersion and film formation in water-based paints, enhancing coverage uniformity and drying performance.
Agricultural Adjuvants: Enhances herbicide and pesticide spray coverage by lowering surface tension, improving efficacy while reducing active ingredient consumption.
Polyethylene Glycol Monooleyl Ether Package & Storage
- Package: 200kg/drum
- Storage: Store in a cool place and keep it sealed to avoid direct sunlight.
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