Sodium Dodecyl Diphenil Ether Disulfonate CAS 119345-04-9

Sodium Dodecyl Diphenil Ether Disulfonate (SDDEDS) is a new anionic sulfate surfactant. It is easily soluble, dispersible, compatible with hard water, and has high electrolyte stabilization.Solid content: 45%

About Sodium Dodecyl Diphenil Ether Disulfonate：

Molecular structure: Sodium dodecyl diphenyl ether disulfonate consists of two sulfonic acid groups connected to a diphenyl ether group and then a dodecyl group. This structure gives it typical properties of anionic surfactants.

Solubility: Sodium dodecyl diphenyl ether disulfonate is soluble in water and forms a transparent solution. In solution, its molecules can be directionally adsorbed to the interface and make it reach the lowest surface tension state. The solubility increases with the increase in temperature, and when the temperature increases, the viscosity of its solution will also decrease accordingly.

Surface tension: Sodium dodecyl diphenyl ether disulfonate has a low surface tension, which can be as low as 20-30 dyne/cm at normal concentrations. This characteristic enables it to show good wetting and permeability in many applications.

Wettability: Due to its low surface tension and good adsorption, sodium dodecyl diphenyl ether disulfonate can effectively reduce the surface contact Angle and improve the wettability of the liquid on the solid surface. In many industrial applications, this property makes it an effective wetting agent.

Emulsification: Sodium dodecyl diphenyl ether disulfonate has excellent emulsification properties and can effectively reduce the interfacial tension of oil and water, so that oily substances form small droplets and are evenly dispersed in water, forming a stable emulsion. This feature makes it widely used in the cosmetics, food, textile printing and dyeing industries.

Foamability: Sodium dodecyl diphenyl ether disulfonate has a certain foamability. The solution can produce a rich and stable foam during the stirring process. However, its foam property is not strong, so it needs to be combined with other surfactants to improve the foam's performance during use.

Hard water resistance and calcium soap dispersity: Sodium dodecyl diphenyl ether disulfonate has good hard water resistance and can easily be used in hard water without precipitating. In addition, it can effectively disperse the calcium soap in water and prevent the precipitation of calcium ions on surfactants.

Decontamination: Due to its excellent wetting, penetration and emulsification properties, sodium dodecyl diphenyl ether disulfonate can effectively remove impurities such as oil, stains and dust, and improve the cleaning effect.

Biodegradability: Sodium dodecyl diphenyl ether disulfonate has good biodegradability and can be decomposed into harmless substances by microorganisms after use, reducing environmental pollution.

Safety: Sodium dodecyl diphenyl ether disulfonate is harmless to the human body under normal conditions of use, but excessive use or misingestion may cause certain irritation and allergic reactions to the human body. 

 Technical Parameter of Sodium Dodecyl Diphenil Ether Disulfonate

Applications of Sodium Dodecyl Diphenil Ether Disulfonate：

Detergents and cleaners

Sodium dodecyl diphenyl ether disulfonate is one of the important components of detergents and cleaners. Its excellent wetting, emulsification, decontamination, and dispersion performance means that the detergent containing the ingredient can effectively remove various stains and grease on the surface of clothing, tableware, household goods, and so on. In laundry detergent, dish soap, hand sanitizer and other products, sodium dodecyl diphenyl ether disulfonate can enhance the cleaning effect of products and improve washing efficiency.

Textile and dyeing

In the textile and printing industry, sodium dodecyl diphenyl ether disulfonate is used as a wetting agent, penetrant and dispersant. In the pre-treatment process of textiles, it can reduce the interfacial tension between the fiber and the slurry, improve the wettability of the fiber, and help the uniform penetration of dyes or finishing agents. In the printing and dyeing process, it can disperse dye particles, prevent dye aggregation and precipitation, and improve the uniformity and color fastness of dyeing.

Cosmetics and personal care

Sodium dodecyl diphenyl ether disulfonate is also widely used in cosmetics and personal care products. Due to its excellent emulsifying properties, it can effectively combine oil and water-based ingredients to form a stable emulsion. In skin creams, shampoos, body washes and other products, sodium dodecyl diphenyl ether disulfonate enhances the texture and feel of products, making skin and hair smoother and softer.

Oil and Energy

In oil extraction and energy, sodium dodecyl diphenyl ether disulfonate is used as an additive for drilling fluids. It can reduce the surface tension of drilling fluid and improve its wettability and stability. At the same time, it can also interact with clay minerals in the formation, prevent clay expansion and dispersion, and maintain the stability of the well wall. In addition, in fuel additives, sodium dodecyl diphenyl ether disulfonate can also improve fuel combustion efficiency and reduce carbon accumulation and emission pollution.

Architecture and Coatings

In the construction and coatings industries, sodium dodecyl diphenyl ether disulfonate is used as a dispersant and a wetting agent. It can disperse pigment and filler particles during the coating preparation process, preventing particles from accumulating and settling. At the same time, it can also reduce the surface tension of the coating, improving its wettability and leveling. This allows the paint to better adhere to the surface of the substrate, forming a uniform smooth coating.

Agriculture and pesticides

In agriculture, sodium dodecyl diphenyl ether disulfonate is used as a pesticide additive. It can enhance the wettability and permeability of pesticides so that pesticides better adhere to the plant's surface and penetrate the plant body. This improves the effectiveness of pesticide use and control. At the same time, it can also reduce the pollution of pesticides to the environment and harm the human body.

Production Method of Sodium Dodecyl Diphenil Ether Disulfonate：

Esterification reaction

Dodecyl phenol ester is formed by the esterification of dodecyl alcohol and phenol under the action of a catalyst.

The high-purity dodecyl phenol ester was obtained by controlling the reaction temperature and pressure.

Sulfonation reaction

The sulfonate was prepared by sulfonation of dodecyl phenol ester with sodium bisulfite.

The sulfonation reaction was carried out completely by controlling the reaction temperature and pressure, and high-purity sulfonate was obtained.

Oxidation reaction

The high-purity diphenyl ether disulfonate was obtained by controlling the reaction temperature and the amount of oxidant.

Sodium salt replacement reaction

Sodium dodecyl diphenyl ether disulfonate was prepared by sodium salt replacement reaction between diphenyl ether disulfonate and sodium hydroxide.

Refining and purification

The products obtained from the sodium salt replacement reaction were refined and purified, and impurities such as unreacted raw materials, catalysts and by-products were removed.

High-purity sodium dodecyl diphenyl ether disulfonate can be obtained by washing, salting, and crystallizing.

Drying and packaging

The refined and purified sodium dodecyl diphenyl ether disulfonate was dried to remove the water.

The dried product is packaged for transportation and storage.

High-purity sodium dodecyl diphenyl ether disulfonate can be prepared using the above steps. It should be noted that in the production process, parameters such as temperature, pressure, raw material purity and the feeding ratio of each reaction step need to be strictly controlled to ensure product quality and yield. At the same time, appropriate safety measures should be taken in the production process to prevent accidents.

Packing and shipping of Sodium Diphenil Ether Disulfonate

We offer a variety of packaging options based on the Sodium Dodecyl Diphenil Ether Disulfonate amount.
Packaging for Sodium Dodecyl Diphenil Ether Disulfonate 1kg/bottle or 25kg/barrel.
Shipping of Sodium Dodecyl Diphenil Ether Disulfonate Once payment has been received, goods can be shipped by air, by sea, or by express.

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