Alkylphenol Ether Carboxylate Sodium (4EO)

APEC-4Na, also known as sodium alkylphenol polyoxyethylene ether carboxylate, is a new type of anionic-nonionic surfactant. Its structure is very similar to that of soap, but the embedded EO chains give it the characteristics of both anionic and nonionic surfactants, allowing it to be used over a wide pH range. It exhibits excellent cleaning, emulsifying, and dispersing properties, as well as the ability to disperse calcium soaps; it possesses good foaming power and foam stability; it is resistant to acids, alkalis, hard water, high temperatures, oxidizing agents, and reducing agents; it has good compatibility and, in particular, does not interfere with the performance of cationic surfactants; it offers good solubilizing properties, making it suitable for formulating functional transparent products, and is readily biodegradable.

Product Features

Name: Phenol Ether Carboxylate APEC-4Na   
Properties:

Where n = 4  
1. Contains two types of hydrophilic groups with different properties (anionic and nonionic), combining the advantages of both anionic and nonionic surfactants. This prevents the chromatographic separation that occurs in the formation when anionic and nonionic surfactants are used in combination.  
2. It has a low critical micelle concentration and surface tension; when formulated, it can achieve ultra-low interfacial tension with a wide range of crude oils of varying quality.  
3. It is resistant to high temperatures and high salinity; when formulated with sodium heavy alkylbenzene sulfonate and other anionic surfactants, it enhances the latter’s resistance to hardness.  
4. It exhibits strong cleaning power against oily contaminants, making it particularly suitable for heavy-duty industrial cleaning formulations and surface cleaning; it effectively removes impurities such as mud, sand, and carbon.  
5. It possesses good penetrating and wetting properties.  
Applications:  
In the petroleum industry, it can be used as a production additive or oil displacement agent, as well as an emulsifier for crude oil transportation, a viscosity reducer, and a solubilizer.  
APEC-4Na can improve crude oil recovery rates; when used for the transportation of viscous heavy oil, a dosage of 0.01% or higher produces satisfactory viscosity-reducing effects while preventing wax precipitation. The salt content or mineralization level of the oil does not affect its viscosity-reducing performance. In chemical oil displacement operations for highly mineralized reservoirs, the excellent hardness resistance of APEC products is significantly superior to that of imported petroleum sulfonate systems.

Application

It can be used in household detergents, industrial cleaning agents, and phosphate-free detergents; in the textile industry for processes such as scouring, mercerizing, bleaching, softening, and dyeing; as an emulsifier and viscosity reducer resistant to high temperatures and high-concentration electrolytes in tertiary oil recovery and oil transportation, to improve crude oil recovery rates and prevent wax precipitation; in the paper industry, it is used for deinking waste paper and in softener formulations; in the leather industry, it serves as a component of degreasing agents, among other applications.

Specifications

Appearance at 15°C

Directions for Use

This product is a paste with poor flowability and must be heated to 50–70°C in a reactor before being blended with other products.

Packaging Specifications

1. Depending on customer requirements, the product will be packaged in ton containers or 200-kg drums and delivered via freight to the designated location by the date specified by the customer. 
2. This product is non-toxic and non-flammable; it should be stored and transported as a general chemical. Store in a dry, well-ventilated area.