02
Jul
They were prepared by the FriedelCrafts alkylation of benzene with propylene tetramer also called tetrapropylene followed by sulfonation. Anaerobic degradation of sulfonates in full scale systems not related to LAS but instead to SAS.
Anaerobic degradation of sulfonates in full scale systems not related to LAS but instead to SAS.
Branched alkylbenzene sulphonates. Branched alkylbenzene sulfonates BAS were first introduced in the early 1930s and saw significant growth from the late 1940s onwards in early literature these synthetic detergents are often abbreviated as syndets. They were prepared by the FriedelCrafts alkylation of benzene with propylene tetramer also called tetrapropylene followed by sulfonation. Linear alkylbenzene sulphonate LAS is an anionic surfactant.
It was introduced in 1964 as the readily biodegradable replacement for highly branched alkylbenzene sulphonates ABS. LAS is a mixture of closely related isomers and homologues each containing an aromatic ring sulphonated at the para position and attached to a linear alkyl chain. Branched alkyl sulphonates to LAS.
Anaerobic degradation of sulfonates in full scale systems not related to LAS but instead to SAS. The SAS monitor-ing in anaerobic.