OP-13 Octylphenol Polyoxyethylene Ether (CAS: 9036-19-5) is a classic nonionic surfactant produced by Guoli Chemical, with the chemical name Octylphenol Polyoxyethylene (13) Ether, also known as OP-13 Emulsifier, Polyoxyethylene (13) Octylphenyl Ether, PEG-13 Octylphenyl Ether, etc. Its appearance is a light yellow to colorless transparent viscous liquid or paste, with extremely high effective active content.
The core advantage of this product lies in its optimized molecular structure, which brings excellent emulsification performance—it can rapidly reduce oil-water interfacial tension, forming a stable and fine emulsion, especially suitable for emulsification needs under harsh conditions. At the same time, it possesses strong wetting and penetrating power, significantly reducing liquid surface tension, and exhibits fast, uniform deep penetration ability on various fibers and hard surfaces.
In addition, its excellent dispersing and detergency performance can effectively prevent redeposition of dirt, giving the formulation outstanding cleaning results. OP-13's chemical stability is very prominent; it maintains excellent performance over a wide range of acid-base conditions and in high-hardness water, and has excellent compatibility with anionic, cationic, and other nonionic surfactants, making it highly adaptable in formulations. This makes it an indispensable core auxiliary component in many industrial formulations.
1. Industrial and Household Cleaners: As a core component of high-efficiency degreasing agents, it effectively removes heavy grease and everyday stains, widely used in metal hard surface cleaning, heavy-duty fabric cleaning, and household cleaning products.
2. Textile Printing and Dyeing Auxiliaries: Used as high-efficiency scouring agent, penetrant, and leveling agent, significantly improving wetting and penetration during fiber pretreatment and dyeing, helping dyes to dye evenly, reducing color spots, and improving fabric hand feel and whiteness.
3. Pesticide Emulsifiers: As a key emulsifying aid, it stably disperses oil-soluble active ingredients into water to form a uniform emulsion, improving the spreading, adhesion, and bioactivity of the spray liquid on plant leaves.
4. Emulsion Polymerization Emulsifiers: Provides a stable emulsification base for the emulsion polymerization of monomers such as vinyl acetate and acrylates, precisely controlling emulsion particle size and ensuring smooth polymerization.
5. Metalworking Fluids: As a multi-functional additive in cutting fluids and grinding fluids, it combines cleaning, lubrication, and anti-rust functions, reducing processing friction and heat accumulation, extending tool life.
6. Leather Degreasing Agents: Efficiently removes natural fats and dirt from raw hides, promoting uniform subsequent processes such as liming and tanning, improving leather softness and yield.
7. Papermaking Auxiliaries: Used in waste paper deinking and paper coating for wetting and dispersing, enhancing pulp fiber wetting and dispersion, improving paper softness and strength, and increasing pulp brightness.
8. Coating and Ink Dispersing and Wetting Agents: Effectively promotes deflocculation and stable dispersion of pigment and filler particles, preventing floating and flooding, giving the coating excellent leveling, gloss, and hiding power.
| Parameter | Value |
|---|---|
| Product Name | OP-13 Octylphenol Polyoxyethylene Ether |
| CAS No. | 9036-19-5 |
| Ion Type | Nonionic Surfactant |
| Appearance | Light yellow to colorless transparent viscous liquid or paste |
| EO Number | 13 |
| HLB Value | Not available (please consult Guoli Chemical Technical Department) |
| Cloud Point | Not available (please consult Guoli Chemical Technical Department) |
| Acute Toxicity (Rat oral LD50) | > 2000 mg/kg |
| Fish LC50 (96h) | 1–10 mg/L |
| Daphnia EC50 (48h) | 1–10 mg/L |
As a general-purpose high-performance emulsifier and wetting penetrant, the recommended addition amount of OP-13 in formulations depends on the specific application scenario. It generally accounts for 1%–10% in cleaning formulations, 5%–15% in pesticide emulsification, and 1%–5% of monomer weight when used as the main emulsifier in emulsion polymerization. For the specific optimal dosage, it is recommended to determine through small-scale tests or consult Guoli Chemical's application technology team for targeted formulation guidance.
When compounding with other types of surfactants, OP-13 shows excellent compatibility with anionic, cationic, and other nonionic surfactants, achieving synergistic effects and further expanding its application performance boundaries.