Octylphenol Ethoxylate is a nonionic surfactant obtained by ethoxylation of octylphenol. Identified by CAS No. 9036‑19‑5, it exhibits excellent detergency, emulsification, and wetting properties in aqueous systems. This product is widely used as a detergent, emulsifier, and wetting agent in industrial and laboratory formulations. The product is supplied for technical use with standard documentation including MSDS, TDS, and COA.
Octylphenol Ethoxylate CAS 9036‑19‑5
- CAS: 9036-19-5
- Synonyms: Octylphenol Ethoxylate, OP-10, TX-100, Alkylphenol Ethoxylate
- Einecs: 500‑016‑5
- Molecular Formula: C₂₈H₅₀O₈
- Grade: 99%
- Package: 200kg iron drum or 50kg plastic drum packaging
Product Description
Physicochemical properties
| Property | Description |
|---|---|
| Appearance | Milky white to light yellow paste or solid (at 25℃) |
| Solubility | Easily soluble in water; miscible with various organic solvents (e.g., benzene, toluene, xylene) |
| pH Value (1% aqueous solution) | 5.0-7.0 |
| HLB Value | Approximately 15 (indicating strong hydrophilicity, suitable for O/W emulsions) |
| Cloud Point (1% solution) | 94-99℃ (reflecting stability at elevated temperatures) |
| Hydroxyl Value | 65±3 mgKOH/g (indicating the hydroxyl group content, affecting emulsification performance) |
| Moisture Content | ≤1.0% |
| Stability | Stable to acids, alkalis, salts, and hard water; sensitive to strong oxidants |
| Surface Tension (0.1% solution) | Approximately 35-45 mN/m (reflecting its ability to reduce surface tension) |
Application Areas
Pesticides and Coatings: Used as emulsifiers and dispersants to enhance drug efficacy or coating stability.
Oilfield chemistry: used as emulsifiers, solubilizers, and wetting agents to improve drilling fluid performance
Detergent: As the main active ingredient in liquid detergents and laundry detergents, it provides stain removal and emulsification functions.
Textile industry: used as a wool degreaser, fabric cleaner, and leveler to improve dyeing uniformity.
Industrial cleaning: used for cleaning metal processing fluids, electroplating fluids, and electronic components to remove oil stains and impurities.
Storage conditions
Environment
Temperature: Store at room temperature (usually 10-30 ℃), avoid high temperature environments (such as outdoor storage in summer or near heat sources), and prevent product deterioration.
Humidity: Store in a dry and ventilated place, with humidity controlled at ≤ 60% to prevent moisture absorption, clumping, or degradation.
Light exposure: Avoid direct sunlight, it is recommended to use a light shielded container or store in a cool warehouse.
Packaging requirements
Sealing: Packaged in 200kg iron drums or 50kg plastic drums to prevent air, moisture, or impurities from entering.
Clear labeling: The packaging should indicate the product name, specifications, production date, shelf life, and safety warning information.
Safety precautions
Non flammable: Emulsifier OP-15 is not flammable, but it should still be kept away from sources of fire, high-temperature surfaces, and open flames to prevent the combustion of other combustibles.
Electrostatic protection: During handling or dumping, it is recommended to use anti-static equipment or grounding devices to avoid generating static sparks.
Protective equipment: In poorly ventilated environments, it is recommended to wear dust masks or half face respirators.
FAQ - Technical & Supply Chain
-
Q:
Why does Octylphenol Ethoxylate cover multiple EO grades under one CAS?
A: CAS 9036‑19‑5 represents a UVCB category covering octylphenol ethoxylates with varying EO chain lengths. -
Q:
Are there regulatory concerns with APEO surfactants?
A: Yes. Alkylphenol ethoxylates are restricted or regulated in several regions due to environmental persistence and endocrine disruption concerns.
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.





