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Sodium Dodecyl Benzene Sulphonate CAS 25155-30-0 

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Place of Origin: Sichuan, China (Mainland) 
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Product Detail

Means of Transport: Ocean,Land,Air
Packing: According to customer requi...
Brand Name: MOSINTER
HLB value: 10.638
Decomposition temperature: 450℃
Production Capacity: 30000T/Year
Delivery Date: within 7 days
CAS No.: 25155-30-0
Molecular formula: C18H29NaO3S
Molecular weight: 348.48
weight loss ratio: 60%

Sodium Dodecyl Benzene Sulphonate is neutral, are sensitive to water hardness

Sodium Dodecyl Benzene Sulphonate (CAS: 25155-30-0)




White or light yellow powder

Molecular Formula


Molecular Weight



By the linear alkyl benzene (LAB) using sulfur trioxide or alkyl sulfonic acid, fuming sulfuric acid sulfonating and made again.


Anionic surfactant. Due to the low production cost, good performance and a wide range of USES, is one of the largest household detergent, a synthetic surfactants dosage and the production of magnesium, calcium and other inorganic salts and organic amine salt such as triethanolamine. Dodecyl benzene sulfonic acid calcium (27176-87-0) good emulsifying performance, is an important part of the preparation of pesticide use mixed emulsifier. Can be caused by benzene and alpha olefins in aluminium trichloride catalyst condensation, condensation liquid caustic washing after steaming, washing the recovery of benzene, alkyl benzene refining vacuum distillation. And then with fuming sulfuric acid sulfonating, lime neutralization (2 times of ethanol), calcium dodecyl benzene sulfonic acid. Anionic emulsifier of acrylate emulsion polymerization.

Sodium Dodecyl Benzene Sulphonate is neutral, are sensitive to water hardness, not easy oxidation, foaming power is strong, high detergency, easy, with a variety of additives to lower cost, mature synthesis process, application field widely, is a very good anionic surfactant. Alkyl benzene sulfonic acid sodium to dirt particles, protein dirt and the decontamination effect of oily dirt, dirt particles on natural fiber washing effect is a plus, detergency enhanced along with the rise of washing temperature, higher than the function of protein fouling non-ionic surface active agent, and rich foam. But there are two shortcomings of alkyl benzene sulfonic acid sodium, it is a hard water resistance is poorer, decontamination performance can be reduced along with the hardness of water, so must give priority to with the surfactant detergent with a moderate amount of chelating agent. Second, skim force strong, has certain stimulating to the skin when washed by hand, after washing clothes feel poorer, appropriate using cationic surfactant as softener rinse. In recent years, in order to obtain better comprehensive washing effect, LAS often with AEO and non-ionic table.

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