Talk:Sodium dodecyl sulfate

message: It is not possible to sulfate alcohol using sulfuric acid alone. There may be some confusion about the use of oleum which will sulfate, as it is sulfur trioxide dissolved in sulfuric acid. I added three potential sulfating agents to the synthetic route, and highlighted the industrially practiced method Euengunn (talk) 02:29, 11 January 2011 (UTC)
thread_title: Changed synthesis route

message: I removed the following content from the article because it was unsupported by any reference and I'm not convinced that it is entirely accurate:  Sodium lauryl sulfate is increasingly found in all kinds of common over-the-counter orally ingested drugs like aspirin as well as prescription medicines like drugs for heart problems. The reason for this is that it aids the production process by helping tablets not to stick to the mould when pressed into shape. The long term health implications of this for patients has not been the subject of any studies, and in the UK for instance it is now virtually impossible to get aspirin of any brand, standard or dispersible that does not contain sodium lauryl sulfate.  -- Ed (Edgar181) 21:47, 5 September 2010 (UTC)
replies: text: Sounds like a hoax... SLS won't work this way, instead, magnesium stearate and stuff like this ist used. --FK1954 (talk) 19:58, 24 September 2010 (UTC)
thread_title: Moved from article

message: The following section I have cut from the article (and added a nowiki capsule), because it contains a citation needed tag which has been unfulfilled apparently since January 2010:Also, anions of SDS bind to the main peptide chain at a ratio of one SDS anion for every two amino acid residues. This effectively imparts a negative charge on the protein that is proportional to the mass of that protein (about 1.4 g SDS/g protein)Reynolds JA, Tanford C (1970) Binding of dodecyl sulfate to proteins at high binding ratios: Possible implications for the state of proteins in biological membranes. Proc Natl Acad Sci USA 66:1002–1007.. I am unsure which if any part of this is fulfilled by the PNAS citation.  Perhaps someone with a stronger chemistry background can review this and reinsert what is  from the citation and keep out what is not.Wjhonson (talk) 18:13, 26 October 2010 (UTC)
thread_title: Moved from article 2

message: Why is SDS called anionic in the first paragraph when the structure clearly shows the Na+, and negatively charged dodecyl sulfate?  For a citation, the Calbiochem volume "Detergents:A guide to the properties and uses of detergents in biological systems" by Srirama M. Bhairi, Ph.D. lists SDS as an ionic detergent (p.40, table).  
Twbeals31 (talk) 22:15, 20 September 2011 (UTC)
replies: text: It's most likely because the active part of the compound in solution (dodecyl sulfate) is anionic. The (cationic) sodium doesn't appear to play a significant role in the activity of the compound. -Multivariable (talk) 00:30, 21 September 2011 (UTC)
replies: text: Yes, that's right.  The part that acts as a surfactant is the dodecyl sulfate, which is negatively charged and therefore anionic.  -- Ed (Edgar181) 20:52, 21 September 2011 (UTC)
thread_title:  Why is SDS called anionic in the first paragraph? 

message: In the world of product marketing, the toothpaste brand "Pepsodent" apparently created the
chemical name "Irium" to represent sodium lauryl sulfate. Although "Irium" appears to be fictional, it
was widely used in it's 1950's advertising comercials on TV.
See also:  http://en.wikipedia.org/wiki/Pepsodent
And: http://www.online-medical-dictionary.org/Irium.asp?q=Irium
And: http://www.facebook.com/pages/Pepsodent/107573479272458
And: http://video.google.com/videoplay?docid=-1009070680693578059#  — Preceding unsigned comment added by 68.147.248.157 (talk) 06:56, 27 September 2011 (UTC)
thread_title:  Other Name for this Chemical.... Irium 

message: Pepsodent article says this is it. Is it?  — Preceding unsigned comment added by 68.183.23.103 (talk) 16:41, 19 October 2012 (UTC)
thread_title:  irium? 

message: Please provide citations for the following, and in doing so, make sure that the content closely follows the meaning and explanation in the source. (Asked, because in the following, the meanings are unclear, inaccurate, and/or explanations are non-encyclopedic.) Please, use secondary sources, and not primary research literature (except to deepen the sourcing) or tertiary sources (such as early undergraduate textbooks). See WP:VERIFY and the related science sourcing guidelines if you have any question. Here are the moved sentences:
* "Sodium lauryl sulfate is also used in the analysis of hemoglobin. The hydrophobic group of SLS acts upon the globin subunit, causing a conformational change; the hydrophilic group of SLS then binds with the oxidized iron subunit, producing a stable reaction product which can then be analyzed, giving a hemoglobin value which is used as part of a complete blood count."
* "SDS is an EPA approved inert ingredient for pesticide formulations.[Cites EPA document for Sodium lauryl ether sulfate] It is also considered a Minimum Risk Pesticides Exempted from FIFRA Registration by the EPA under 40 CFR 152.25(f)." [Note, this paragraph bases its conclusions on sources that regard a different, but similarly named compound.]
Cheers, Le Prof Leprof 7272 (talk) 23:54, 13 March 2016 (UTC)
thread_title: Stray unsourced and inaccurate sentences moved here

message: It's explained early that Sodium Dodecyl Sulphate (SDS) is a synonym for Sodium Lauryl Sulphate (SLS). But then half way through the article, it's all "SDS this" and "SLS that", as if they're two different things. Choose one and stick to it. I would choose SLS, but there are comments above suggesting that usage differs between academe and industry.
I'll give it a few days, and then in the absence of comments here, I'll probably single-down on SLS.
21:18, 19 April 2022 (UTC)
thread_title:  Synonym