Talk:Trifluoroacetic acid
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Systematic Name
editShouldn't this be the IUPAC name. Trifluoroethanoic acid? The link Systematic name in the side box goes goes there. Cian Moriarty 17:54, 6 November 2006 (UTC)
What is the permitted daily exposure limit for TFA? —Preceding unsigned comment added by 125.16.16.215 (talk) 08:29, 24 August 2009 (UTC)
TFA is a Strong Acid
editSince it has a pKa and is completely dissociated in water, TFA is actually a weak acid. It is a stronger acid than acetic acid (pKa = 4.75). —The preceding unsigned comment was added by 199.234.90.214 (talk) 16:23, 21 February 2007 (UTC).
The difference between pKa of acetic acid (4.76) and TFA (0.3) is "only" 4.46, what makes TFA ~28 000-times stronger acid, not 100 000-times ;) Someone correct that
134.160.83.107 (talk) 03:35, 24 November 2009 (UTC)JackBean
Dead link
editThe one source no longer exists fyi. This one: 1. ^ Eidman, K. F.; Nichols, P. J. "Trifluoroacetic Acid" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. DOI:10.1002/047084289X —The preceding unsigned comment was added by ThreeSpears (talk • contribs) 02:25, 5 April 2007 (UTC).
Mass Spectrum
editHow can this possibly be the mass spectrum of TFA in ESI negative mode?
To my knowledge (as an analytical chemist who sometimes uses TFA), TFA should give only two major peaks in ESI negative, them being 113 (deprotonated TFA molecular ion) and 69 (CF3-). However the peaks shown in the uploaded spectrum have masses that are far, far too high... looks more like a protein spectrum... —Preceding unsigned comment added by 142.151.182.19 (talk) 04:18, 20 March 2009 (UTC)
See http://pubs.acs.org/doi/abs/10.1021/ac00193a027 ? --Rifleman 82 (talk) 16:46, 23 June 2009 (UTC)
It's still not annotated very well. Without precise conditions an ion cluster spectrum is useless. I suggest it be removed as I can see no rationale for its being here. It adds nothing to this article. —Preceding unsigned comment added by 198.28.92.5 (talk) 15:22, 10 February 2010 (UTC)
I agree with Rifleman, this cannot be a MS of TFA. I would like to post a replacement spectrum from the NIST chemistry web book, but I cannot since I am not autoconfirmed. The image is here: http://webbook.nist.gov/cgi/cbook.cgi?Spec=C76051&Index=0&Type=Mass&Large=on. Mallonna (talk) 06:31, 28 March 2013 (UTC)
Natural product?
editThis is categorized as a halogen-containing natural product, but the article doesn't mention anything about it. I'd be interesting in reading more about the natural occurrence of this compound. --Itub (talk) 11:47, 23 June 2009 (UTC)
Hi, completely new to wiki, so please excuse me. the page, under hazardous properties, lists a flash point for TFA as -3 deg C. Anyone have any idea where this came from ? I believe TFA is non flammable, and self extiguishing∼∼∼∼ — Preceding unsigned comment added by Chemfluoro (talk • contribs) 20:33, 14 September 2015 (UTC)