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Demystifying Calcium Dodecyl Benzene Sulfonate: What Is It and How Is It Used?

Sep. 23, 2023
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Chemical compounds are often hidden behind complex names, and one such compound that you may have encountered is Calcium Dodecyl Benzene Sulfonate. While the name might sound daunting, this chemical plays a significant role in various industries, from household cleaning to agriculture. In this article, we'll demystify Calcium Dodecyl Benzene Sulfonate (CDBS), explaining what it is, how it's synthesized, and its diverse applications.

CAS 26264-06-2

Understanding Calcium Dodecyl Benzene Sulfonate (CDBS)


At its core, Calcium Dodecyl Benzene Sulfonate is a type of surfactant, a compound that lowers the surface tension of liquids. This property makes it an excellent cleaning agent and emulsifier, which is used to mix substances that normally don't combine well, such as oil and water.


Synthesis of CDBS


CDBS is synthesized through a chemical process that involves several steps:


Starting Material: The starting material is dodecylbenzene, a hydrocarbon derived from petroleum.


Sulfonation: Dodecylbenzene undergoes a sulfonation reaction, where sulfuric acid or sulfur trioxide is added. This reaction introduces a sulfonate group (-SO3H) onto the dodecylbenzene molecule.


Neutralization: The resulting sulfonic acid is neutralized with calcium hydroxide, leading to the formation of Calcium Dodecyl Benzene Sulfonate.


Applications of CDBS


Household Cleaning Products: CDBS is commonly found in household cleaning products such as laundry detergents, dishwashing liquids, and all-purpose cleaners. It enhances the cleaning power by reducing the surface tension of water, allowing it to penetrate and remove dirt and stains effectively.


Agricultural Formulations: In agriculture, CDBS is used as a wetting agent and dispersant in pesticide formulations. It helps ensure even distribution and adherence of pesticides to plant surfaces, increasing their effectiveness.


Textile Industry: CDBS is employed in the textile industry as an emulsifier for dyeing and finishing processes. It aids in the even distribution of dyes and chemicals on fabrics.


Oilfield Chemicals: In the oil and gas industry, CDBS is used in drilling fluids and oil recovery processes to improve the solubility of chemicals in water-based systems.


Other Industrial Applications: CDBS finds use in various industrial applications, including metal cleaning, leather processing, and water treatment.


Environmental Considerations


CDBS is known for its biodegradability, which means it can break down naturally in the environment. This property makes it an environmentally friendly choice in many applications, particularly in cleaning products where reducing environmental impact is a priority.



Calcium Dodecyl Benzene Sulfonate, despite its complex name, is a versatile and effective surfactant with wide-ranging applications in cleaning, agriculture, textiles, and industry. Its ability to lower surface tension, enhance solubility, and disperse substances makes it a valuable component in various products and processes. Moreover, its biodegradable nature contributes to its eco-friendliness, aligning it with sustainable practices in multiple industries. The next time you encounter this chemical on a product label, you'll have a better understanding of its role in making those products more efficient and effective.


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