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Water Soluble LAS/SDBS Anionic Surfactant CnH2n 1OSO3Na Chemical Formula Low Density Liquid

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Water Soluble LAS/SDBS Anionic Surfactant CnH2n 1OSO3Na Chemical Formula Low Density Liquid

Product Details:

Detailed Product Description
Solubility: Soluble In Water Code: LAS,SDBS
Chemical Formula: CnH2n+1OSO3Na Density: 1.0-1.2 G/cm3
Surface Tension: 30-40 MN/m Classification: Anionic Surfactant
Melting Point: Not Applicable Appearance: Clear To Pale Yellow Liquid

Product Description:

Anionic surfactants are a pivotal classification of surfactants, which are substances that, when dissolved in water or another solvent, reduce surface tension between two liquids or a liquid and a solid. The term "anionic" refers to the negative charge these surfactants carry when they are in a solution. One such product within this category, which we will highlight in this summary, presents a chemical formula of CnH2n+1OSO3Na. This compound is a versatile anionic solubilizing agent widely used in various cleaning and personal care products due to its excellent detergent, wetting, and emulsifying properties.

The solubility profile of this particular anionic surfactant is an essential feature, as it is readily soluble in water. This characteristic ensures that the product can easily be incorporated into formulations, enabling it to interact with dirt and oils effectively. The solubility in water also means that the surfactant can be washed away without leaving any residues, which is particularly important in applications such as laundry detergents, dishwashing liquids, and body washes.

The pH range of 8-10 indicates that the surfactant is slightly alkaline when dissolved in water. This pH environment is favorable for many cleaning applications as it helps in breaking down acidic stains and soils. Furthermore, formulations with this pH are generally well-tolerated by human skin, which is why this anionic surfactant is also utilized in personal care products such as shampoos, facial cleaners, and soaps.

Surface tension is a critical parameter when discussing the efficacy of surfactants. With a surface tension ranging between 30-40 MN/m, this anionic surfactant demonstrates a strong capacity to reduce the surface tension of water. This reduction in surface tension is what allows the surfactant to spread more easily across surfaces, enabling it to penetrate and lift away dirt, oils, and other contaminants. This property makes it an excellent anionic foaming agent, creating a rich lather that enhances the cleaning process and provides a satisfying user experience in products like shampoos and shower gels.

The chemical structure, represented by the general formula CnH2n+1OSO3Na, illustrates the anionic nature of this surfactant. This structure consists of a long hydrophobic tail (CnH2n+1) and a hydrophilic head (OSO3Na). The hydrophobic tail is responsible for the surfactant's ability to associate with non-polar substances like oils and greases, while the hydrophilic head allows it to dissolve in water. When in solution, the hydrophilic head becomes negatively charged, turning the molecule into a negative ion surfactant, which further enhances its ability to interface with different substances and contaminants.

Vapor pressure is a term used to describe the propensity of a substance to vaporize. In the case of this anionic surfactant, the vapor pressure is considered not applicable. This indicates that under normal conditions, the surfactant does not easily evaporate into the air. This property is beneficial for manufacturers and consumers as it ensures that the product remains stable and effective throughout its shelf life and usage without the risk of significant loss through evaporation.

In summary, the anionic surfactant with the chemical formula CnH2n+1OSO3Na is a multifunctional ingredient that serves as both an anionic solubilizing agent and an anionic foaming agent. Its water solubility, slightly alkaline pH, ability to significantly reduce surface tension, and stability due to an inapplicable vapor pressure make it a valuable component in a wide array of products. From household cleaners to personal care items, this negative ion surfactant offers manufacturers the ability to create high-performance products that effectively clean, lather, and provide user satisfaction.


  • Product Name: Anionic Surfactant
  • Classification: Anionic Surfactant
  • Boiling Point: Not Applicable
  • pH: 8-10
  • Melting Point: Not Applicable
  • Density: 1.0-1.2 g/cm 3
  • Also known as a Negative Ion Surfactant
  • Functions as an Anionic Emulsifying Agent

Technical Parameters:

Parameter Specification
Odor Slight Characteristic Odor
Classification Anionic Surfactant
Appearance Clear To Pale Yellow Liquid
Vapor Pressure Not Applicable
Solubility Soluble In Water
Refractive Index 1.35-1.45
Melting Point Not Applicable
Surface Tension 30-40 MN/m
pH 8-10


Anionic surfactants, identified by codes such as LAS (Linear Alkylbenzene Sulfonates) and SDBS (Sodium Dodecylbenzene Sulfonate), are a class of surfactants with a slight characteristic odor and are widely recognized for their superior detergent properties. With a density ranging from 1.0 to 1.2 g/cm3 and vapor density being not applicable, these surfactants are a popular choice in various applications due to their effective surface-active properties. Anionic surfactants serve as anionic dispersing agents, which means they are excellent at reducing the surface tension of water, making them perfect for a multitude of scenarios.

One of the primary applications of anionic surfactants like LAS and SDBS is in the formulation of laundry detergents. They work effectively to remove dirt and grease from clothing, ensuring a deep clean with every wash. Households and commercial laundry services benefit greatly from the use of these surfactants. In addition to laundry, anionic surfactants are also used in dishwashing liquids and other household cleaners, providing the necessary cleaning power to tackle tough grease and food residues on dishes, pots, and pans.

In the industrial sector, anionic surfactants are employed as anionic dispersing agents in the production of emulsion polymers, adhesives, and coatings. Their ability to disperse particles evenly in a mixture ensures a consistent and reliable end product. Furthermore, the construction industry utilizes these surfactants in concrete and mortar formulations to enhance workability and strength.

The personal care industry also heavily relies on anionic surfactants. Products such as shampoos, body washes, and facial cleansers contain these surfactants to help cleanse the skin and hair by effectively removing oils and dirt while ensuring that the product spreads easily during application. The slight characteristic odor of these surfactants does not overpower the fragrance of the personal care products, maintaining a pleasant user experience.

Lastly, in the field of agriculture, anionic surfactants serve as wetting agents and components in pesticide formulations. They aid in spreading the pesticide evenly over plant surfaces, ensuring that the active ingredients are effectively delivered to target pests. The use of anionic surfactants in agriculture helps in minimizing the amount of product needed, thus contributing to more sustainable farming practices.

Overall, the versatility and effectiveness of anionic surfactants like LAS and SDBS as anionic dispersing agents make them an indispensable component in a wide range of applications across various industries, from household cleaning to advanced industrial manufacturing.


Anionic surfactants are versatile substances that serve as effective wetting agents, surface active agents, and foaming agents. Our product customization services allow you to tailor the anionic surfactant to meet your specific requirements. The product features a density ranging from 1.0 to 1.2 g/cm 3 , ensuring optimal performance in various applications. Its appearance is a clear to pale yellow liquid, which is a standard quality indicator for this type of chemical. Since it is a liquid, the vapor density is not applicable, and the melting point is not applicable, signifying a stable product under normal conditions. The chemical formula, CnH2n+1OSO3Na, represents a flexible chain length that can be adjusted to suit your needs. Whether you require an efficacious anionic wetting agent, a reliable anionic surface active agent, or a potent anionic foaming agent, our customization services cater to your specific industry and application.

Support and Services:

Our anionic surfactant product comes with comprehensive technical support and services designed to assist you with any product-related concerns you may have. Our support includes detailed product documentation, safety data sheets (SDS), and application guides that provide essential information to ensure safe and effective usage. Our team of expert chemists is available for consultations to help you integrate our anionic surfactant into your processes, optimize formulations, and troubleshoot any issues you may encounter.

In addition to our technical guidance, we offer a suite of services to enhance your experience with our anionic surfactant. This includes quality control testing, product customization options, and performance analysis to ensure that our surfactant meets your specific needs. We are committed to providing ongoing support to help you maintain the quality and efficiency of your applications.

For any technical inquiries or service requests, we encourage you to reach out to our dedicated support team. While we are unable to provide direct contact information here, please refer to the product packaging or our official website for the appropriate contact channels. Our professional support personnel are ready to assist you with prompt and knowledgeable service to ensure your satisfaction with our anionic surfactant product.

Packing and Shipping:

Product Packaging: The anionic surfactant is packaged in high-density polyethylene (HDPE) drums that are tightly sealed to ensure product integrity and prevent contamination. Each drum is labeled clearly with the product name, net weight, batch number, and a hazard warning if applicable. The packaging is designed to be robust and resistant to chemicals, ensuring that the surfactant remains safe and effective during transit and storage.

Shipping Information: The product is shipped according to all relevant local and international regulations for hazardous materials. It is palletized for stability during transport and shrink-wrapped to protect against environmental factors. Shipping documents include a Material Safety Data Sheet (MSDS), handling instructions, and emergency contact information. It is the responsibility of the receiving party to ensure that the product is transported from the delivery point in compliance with all safety and environmental regulations.


Q1: What are the common applications of anionic surfactants?

A1: Anionic surfactants are widely used in various industries due to their effective cleansing and emulsifying properties. They are commonly found in household cleaning products such as laundry detergents, dishwashing liquids, and all-purpose cleaners. Additionally, they are used in personal care products including shampoos, body washes, and facial cleansers. In industrial settings, anionic surfactants are used in processes such as textile manufacturing, oil recovery, and as components in emulsion polymerization.

Q2: How do anionic surfactants work?

A2: Anionic surfactants work by reducing the surface tension of water, which helps to loosen and remove dirt, grease, and oils from surfaces and fabrics. Their molecules have a negatively charged (anionic) hydrophilic head that is attracted to water and a hydrophobic tail that is attracted to oils and greases. When used in cleaning products, they surround dirt particles, allowing them to be rinsed away easily with water.

Q3: Are anionic surfactants biodegradable?

A3: Many anionic surfactants are designed to be biodegradable, meaning they can be broken down by microorganisms into simpler, non-toxic substances. However, the rate and extent of biodegradability can vary depending on the specific chemical structure of the surfactant. It is important to check the product specifications or environmental certifications for information about the biodegradability of a particular anionic surfactant.

Q4: Can anionic surfactants be used in combination with other surfactants?

A4: Yes, anionic surfactants are often used in combination with other types of surfactants, such as nonionic, cationic, or amphoteric surfactants, to enhance the performance of cleaning products. Each type of surfactant has unique properties, and combining them can provide a synergistic effect, leading to improved cleaning efficiency, foam stability, and mildness of the product.

Q5: Are there any safety concerns associated with anionic surfactants?

A5: Anionic surfactants are generally considered safe when used as directed in consumer and industrial products. However, like all chemicals, they should be handled with care. Direct exposure to concentrated surfactants can cause skin or eye irritation. It is recommended to follow safety guidelines and use personal protective equipment if necessary when handling concentrated anionic surfactant products. Furthermore, always read and follow the instructions on the product label for safe and effective use.

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