Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 270-115-0 | CAS number: 68411-30-3
LAS was evaluated for its biodegradability in water, and was found to be 85% degraded in 29 days; LAS is readily biodegradable in water. Although not a requirement for surfactants, LAS passed the 10-day window. Biodegradation of LAS in sediments has been reported. C12LAS (linear alkylbenzene sulfonate) was aerobically biodegraded in sediment (Lytle Creek). After 148 days, 60.8% was mineralized, 14.4% was associated with solids, 1.4% was metabolites, and 24.5% remained as parent. The rate constants for primary biodegradation and mineralization were 1.5 day-1 and 0.06 day-1, respectively. C12LAS (linear alkylbenzene sulfonate) was aerobically biodegraded in sediment (Ohio River). After 92 days, 42.1% was mineralized, 28.5% was associated with solids, 0% was metabolites, and 29.8% remained as parent. The disappearance of LAS from sludge-amended soils was reported as having a Half-life = between 7 and 22 days. Half-lives compare well with those for ultimate degradation in lab soil tests (with14-C-evolution), indicating that the degradation of LAS does not lead to the formation of significant levels of breakdown intermediates in soil.
Biodegradation is the primary means of degradation for LAS. LAS is considered readily biodegradable in water, sediment and soil.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Close Do not show this message again