Talk:Haloalkane

message: "CFCs' lack of reactivity gives them a lifespan which can exceed 100 years in some cases. This gives them time to diffuse into the upper stratosphere. Here, the sun's ultraviolet radiation is strong enough to break off the chlorine atom, which on its own is a highly reactive free radical. This catalyzes the break up of ozone into oxygen..."
Now we all know this, but how do the CFC's disperse into the atmosphere? Are they lighter than air? Can they gather enough energy to make it all the way into the upper stratosphere? I can't find the density of a CFC molecule anywhere on the web. --68.158.211.169 (talk) 20:15, 16 October 2008 (UTC)
thread_title: Ozone Destruction

message: According to the "naming code", R-134 should be the most symmetrical version of C2H2F4, namely 1,1,2,2-tetrafluoroethane.  R-134a should be a less symmetrical version of C2H2F4, namely 1,1,1,2-tetrafluoroethane, which is the new Freon replacement we've all come to know and love. ;-)  I believe the Suva name would be consistent with that.  If there's no response in a couple of days, I think I'll go and fix it myself.  H Padleckas 11:09, 30 May 2005 (UTC)
thread_title:  R-134 and R-134a 

message: I made some changes to the haloalkanes table.  My computer monitor screen is not very wide.  I made the table wider so that all the chemical formulas in the rightmost column could fit on one line.  If you don't like some change, revert it.  H Padleckas 17:19, 1 Jun 2005 (UTC)
thread_title:  Changes to Haloalkanes Table 

message: Anyone know what the problem is with the unreadable characters? I'm on XP and tried IE and Firefox with no joy. Is this an OCR or copy paste problem? What should those formulae be?? Regards SeanMack 16:13, 9 April 2006 (UTC)
thread_title: Dodgy Characters

message: Is the use of hydrochlorofluorocarbons legal? Everywhere? I'm specifically wondering about canned air, which I haven't heard of outside the US. Am I justified in adding a note to the canned air page that it's not that environmentally friendly?
On page arrangment, it's overwhelming, and there are double redirects back to chlorofluorocarbon. It's confusing to be taken to a long article about haloalkanes on typing in 'CFCs,' and a bit like being redirected to a page on 'mammals' when typing in 'dog.'
(I'm not criticising anyone's merges/demerges as I don't have time to edit the article myself right now or even read all the comments above.)
Njál 20:14, 1 June 2006 (UTC)
thread_title:  "Canned air" / arrangement of article / legality 

message: From Alkanes
It does not make any sense to me why is there only the Initiation Step, but not the termination step. The free radical halogenation/substitution (whatever you call it), consist of Initiation, Propagation and Termination steps. If possible, please include the last step to make the reaction complete.
From Alkenes
I made a slight edit on the second example to mkae it a more balanced equation.
203.124.2.55 17:53, 12 August 2006 (UTC)
thread_title:  Synthesis 

message: I need to know if "2-Bromo-1-Chloropropane" is the same as "Dibromochloropropane".
Randreed 18:22, 5 February 2007 (UTC)
replies: text: 2-bromo-1-chloropropane will be ClCH3CHBrCH3 while dibromochloropropane will be C3H5Br2Cl. So, not the same. --Rifleman 82 19:50, 5 February 2007 (UTC)
thread_title:  "Dibromochloropropane" or "2-Bromo-1-Chloropropane" 

message: One consequence of the merger has been that the word "halon" is used without being introduced or defined.
As a non-chemist coming to this page to read about halon, it's a bit confusing. It sounds like a halon is some type of haloalkane. Or maybe it's  a trade name? (It seems so, according to http://en.wikipedia.org/wiki/Bromotrifluoromethane)
It would be helpful to have a brief gloss. —The preceding unsigned comment was added by Huttarl (talk • contribs) 11:25, 14 March 2007 (UTC)
thread_title:  What is halon? 

message: By all the information I can gather it is the same as the HFC-134a in context but the pharmaceutical companies refer to it as HFA-134a (1,1,1,2-tetrafluoroethane). Is it a purity standard?
--RonEJ 09:30, 25 March 2007 (UTC)
thread_title:  Where Does HFA-134a Fit? 

message: Several references appear at the end of the page, but few are actually referred to in the article.  I've refrained from tagging anything as unreferenced; I'd prefer to either start a discussion about this or call it to the attention of someone who is bolder than I.  The "Environmental issues" section especially needs these direct references, as this part is commonly debated.
Also noted is the shortage of peer-reviewed, scientific articles in the reference section. 71.96.69.173 23:23, 15 May 2007 (UTC)
thread_title:  Citations/References 

message: Whilst haloalkanes are all alkanes, it is very important to remember that alkyl halides include all possible aliphatic and sundry organic molecule. For example 1-bromo-2-butyne is an alkyl halide despite being an alkyne. chloromethyl benzene for eg is also one. The CFC's etc sections are fantastic but perhaps a little misleading. The redirect from alkyl halide could be sent to organic halides. This would be better....
Spgoo1 04:15, 3 October 2007 (UTC)
thread_title:  Alkyl halides... 

message: I am thinking about adding a little more information about how chlorofluorocarbons actually deplete the ozone layer. This addition should provide some background on why ozone depletion is happenning as well as the consequences of this depletion--Ilikemangos (talk) 06:54, 18 March 2008 (UTC)
thread_title:  An addition to the Chloro fluoro compounds section 

message: Has anyone data on the total amount (e.g. in tons) of CFC use commercially? I believe a statistic of "production in tons/year" over the relevant period and "estimated tons set free per year" would be an excellent addition to this article. If possible, of course with proper links to authentic data. Cheers!  —Preceding unsigned comment added by 84.143.99.99 (talk) 13:17, 30 April 2008 (UTC)
thread_title:  Question: Amount

message: The article isn't clear on the use of abbreviations of "Hydro fluoro compounds" / "Hydrofluorocarbons", sometimes the abbreviation is written HFCs, sometimes HFC (a third variant is HFC's, c.f. PFC (chemical)). I am no native speaker, but since the "C" stands for "compounds"/"carbons" shouldn't the abbreviation be just HFC?  —Preceding unsigned comment added by 193.174.171.2 (talk) 13:57, 23 March 2009 (UTC)
thread_title:  Question: HFC Abbreviations 

message: This is an article on a class of organic chemicals, why is it part of the aformentioed project?
Obikirk (talk) 15:01, 2 February 2010 (UTC)
thread_title:  Project Delaware? 

message: Why it produces iso-cyanide Rajnish45 (talk) 14:10, 8 September 2016 (UTC)
thread_title:  Reaction Of haloalkane and silvercyanide?