Uses of linear alkyl benzene sulfonate (LAS)

Linear alkyl benzene sulfonate (LAS) is widely used in the detergent industry, as well as a very high performance-price ratio of surfactant. After nearly 40 years of testing and practical application shows that LAS has been recognized internationally on environmental and human security.

Linear alkyl benzene sulfonic acid sodium can purified into the hexagonal top or rhomboid crystals, minimal toxicity, and international security organization has identified it as a safe chemical raw material, it can be applied to fruits and tableware washing. Sodium alkyl benzene sulfonate are commonly used in the detergent. Because of the large-scale automated production, it is low prices. Linear alkyl benzene sulfonic acid sodium salt in the detergent is divided into branched chains (ABS) and straight-chain structure (LAS). Biodegradability of branched chains is small and may do harm to environment, but straight-chain structure is easily biodegradable, its biodegradation may be greater than 90% and less environmental pollution.

But people pay more attention to the real environment, data of the United States, and Canada and Germany active wastewater treatment plant shows that the removal rate of LAS is 96%~99%. Some researchers found that LAS degradation is very quickly in the groundwater, deep in the infiltration points over 600m not measured LAS. Researchers also found that C13LAS biodegradation half-life is 1-2 days.
Linear alkyl benzene sulfonate is not only the most important variety of anionic surfactant, but also the main kinds of detergent actives. It has strong detergency, bubble and foam stability, it has good stability in solution of acidic, alkaline and certain antioxidants, such as sodium hypochlorite, peroxide, etc. Therefore, it is a quality detergents and foaming agents.

Linear alkyl benzene sulfonic acid sodium salt is neutral, it is more sensitive to water hardness, not easy to oxidation, strong foaming ability, low cost, higher detergency and easily compounded with various additives. They are excellent surfactants. In recent years, LAS always use with non-ionic surfactant such as AEO for better integrated washing results. The main purpose of LAS is the preparation of various types of liquid, powdered, granulated detergents, cleaners and detergents. It is safe to the environment and humans. Due to the nature of LAS, it still have very broad application prospects in a long period in the future. Read more here!