Webquestions ranging from the Subcommittee’s interpretation of language related to the physical chemical definition of terms to the environmental fate of the proposed materials to whether or not tractable ... What is the toxicity and mode of action of the substance and of its breakdown products or any ... Lignin sulfonate, or lignosulfonate, is ... Linear alkylbenzene sulfonates (LAS) are prepared industrially by the sulfonation of linear alkylbenzenes (LABs), which can themselves be prepared in several ways. In the most common route benzene is alkylated by long chain monoalkenes (e.g. dodecene) using hydrogen fluoride as a catalyst. The purified … See more Alkylbenzene sulfonates are a class of anionic surfactants, consisting of a hydrophilic sulfonate head-group and a hydrophobic alkylbenzene tail-group. Along with sodium laureth sulfate, they are one of the oldest and most … See more Under ideal conditions the cleaning power of BAS and LAS is very similar, however LAS performs slightly better in normal use conditions, due to it being less affected by hard water. Within LAS itself the detergency of the various isomers are fairly similar, … See more 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 … See more The biodegradability of alkylbenzene sulfonates has been well studied, and is affected by isomerization, in this case, branching. The salt of the linear material has an See more

2.2 Chemistry, Terminology, and Acronyms – PFAS — …

WebSulfonates are strong organic acids; hence, they are anions over a wide range of pH and cannot be effectively trapped by conventional adsorbents such as RP 18 materials. In … WebPerfluorooctanesulfonic acid ( PFOS) ( conjugate base perfluorooctanesulfonate) is a chemical compound having an eight- carbon fluorocarbon chain and a sulfonic acid … pipes and cigars coupon codes december 2015

Perfluorooctanesulfonic acid - Wikipedia

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