C13 Alcohol Ethoxylate E-1340 (CAS No.: 9043-30-5), chemical name: isotridecanol polyoxyethylene (13) ether, also known as Isotridecanol Ethoxylate (13EO) or PEG-13 Isotridecyl Ether. It appears as a colorless to slightly yellow transparent liquid or paste and belongs to the nonionic surfactant category. Due to the molecular structure containing both a hydrophobic isotridecyl carbon chain and a hydrophilic polyoxyethylene (13EO) segment, it possesses outstanding amphiphilic properties and can effectively reduce interfacial tension.
The core characteristic of this product lies in its strong emulsifying ability - it can disperse a variety of oil phases into stable and fine emulsion systems; at the same time, it has rapid wetting and penetrating properties, promoting liquid spreading on the substrate surface; additionally, it exhibits excellent dispersibility, preventing particle aggregation and maintaining long-term stability of the dispersion system. In terms of chemical properties, C13 Alcohol Ethoxylate E-1340 remains stable in acidic and alkaline environments, can tolerate hard water conditions, and has a wide range of applications.
The product is supplied by Haian Guoli Chemical Co., Ltd. (Guoli Chemical) and is widely used in textile scouring and penetrating, industrial hard surface cleaning for oil emulsification, leather degreasing and fatliquoring, paper deinking, pigment wetting and dispersion in water-based coatings, pesticide emulsifiable concentrate emulsification, metalworking fluids, and emulsion polymerization stabilization. It is a proven mature industrial surfactant product in the market.
| Parameter | Specification/Data |
|---|---|
| Product Name | C13 Alcohol Ethoxylate E-1340 |
| Chemical Name | Isotridecanol Polyoxyethylene (13) Ether |
| CAS No. | 9043-30-5 |
| Alias | Isotridecanol Ethoxylate (13EO); Polyoxyethylene (13) isotridecyl ether; PEG-13 Isotridecyl Ether; Trideceth-13 |
| Ionic Type | Nonionic Surfactant |
| Appearance | Colorless to slightly yellow transparent liquid or paste |
| EO Addition Number | 13 moles |
| Flash Point | >150°C, non-flammable |
| Acute Oral Toxicity (Rat LD50) | 300～2000 mg/kg |
| Biodegradability | Rapid biodegradability >60% (BOD/COD, 28 days) |
| Storage Temperature | Recommended 5°C to 40°C |
Textile Dyeing and Printing: Used as scouring agent, penetrating agent, and leveling agent, providing excellent wetting and penetrating properties during pretreatment and dyeing processes, helping to remove fabric impurities and ensure uniform dye uptake.
Industrial Cleaning: Suitable for hard surface and metal cleaning formulations, efficiently emulsifying and dispersing oil stains with low foam and easy rinsing characteristics, recommended for kitchen, bathroom cleaning, and industrial parts cleaning.
Leather Processing: Used in degreasing to remove natural fats from raw hides, and as a fatliquoring emulsification carrier to promote uniform oil penetration, making leather soft and full.
Papermaking Industry: As a component of deinking agents, promoting separation of ink from fibers and preventing redeposition; also used for felt cleaning.
Water-Based Coatings and Inks: As a wetting and dispersing agent, quickly wetting pigment and filler particles, stabilizing dispersion, and preventing flocculation and sedimentation.
Agrochemicals: As an emulsifier for pesticide emulsifiable concentrates and aqueous emulsions, and as a tank-mix wetting adjuvant, reducing surface tension of spray solution, enhancing spreading and penetration on plant leaves.
Metalworking Fluids: Provides lubrication, cooling, and cleaning functions in semi-synthetic or fully synthetic cutting fluids.
Emulsion Polymerization: Acts as an emulsifying stabilizer in emulsion polymerization of monomers such as acrylates and styrene, providing excellent micellar solubilization and particle size control.