Talk:List of refrigerants

message: This is the best reference on ASHRAE numbers and GWPs I have seen! Could we improve it by adding the EPA and global numbering scheme for Ozone Depleting Substances as a cross reference?  This would be even more useful.  Having a downloadable spreadsheet would also be nice. I am a wiki newbie so would not venture to do this myself although the cross refernce sources are in 40 CFR 98 Table A-1 and http://www.epa.gov/ozone/geninfo/numbers.html
Pugliop (talk) 22:57, 29 August 2011 (UTC)
thread_title:  Add EPA Designations and Downloadable File to Make Super Useful 

message: It seems to me that for quite many compounds the molecular mass is in the column of normal boiling point temperature. Needs a lot of fixing! Thanks.  — Preceding unsigned comment added by 62.78.193.63 (talk) 20:06, 28 October 2012 (UTC)
thread_title:  Molecular masses at the column of normal boiling point temperature 

message: I reverted all edits to the EmausBot edit of 5 July 2012. The subsequent four edits scrambled the columns in a way that would be very tedious to manually fix. Most noticablly is the molecular mass column. The molecular mass column is OK for the first 20 lines or so. Jim1138 (talk) 04:06, 19 September 2013 (UTC)
thread_title:  Reverted to 5 July 2012 EmausBot edit 

message: Per suggestion of Material scientist, I have removed the molecular mass uncertainty and reduced the mass precision. The mass uncertainty would not be useful except to someone doing extreme precision experiments. The experimenter would be referencing literature and not Wikipedia for this information. As the uncertainty and extra precision bloats the article and makes it difficult to read and maintain, I have removed it. Jim1138 (talk) 08:27, 19 September 2013 (UTC)
thread_title:  Removed molecular mass uncertainty 

message: Hi,
You might want to add R-723 (Ammonia-dimethil-ether)
Ákos  — Preceding unsigned comment added by 109.74.55.49 (talk) 09:02, 20 January 2014 (UTC)
thread_title:  R-723 

message: There is no mention of hydrocarbon refrigerants - R170 (ethane), R290 (propane), R600/600a (butane/iso-butane). 
Alongside the relevance of these refrigerants for general subject coverage, HC Rrefrigerants are, in many cases, superior refrigerants to others mentioned in the article, particularly with regard to performance, cost, availability and environmental impact, which appears to be a key focus of the current article: 
 Hydrocarbon refrigerants have GWP's only a tiny fraction of the HCFC/HFC refrigerants.
 Do not damage the ozone layer as do CFC's.
 More thermodynamically efficient than HCFC.
 Much lower toxicity than CFC/HCFC.
 Compatible with most existing systems; (R12, R22, R134a, R404A, R407C, R502, R600a).
 Lower head pressure is gentler to equipment.
 Compatible with all refrigeration lubricants, including synthetic and mineral oils.
 More readily available than alternatives.
 Cheaper than alternatives.
*http://content.hychill.com/
*http://www.oz-chill.com/about-us/why-hydrocarbons/
*http://hvac-talk.com/vbb/attachment.php?s=278b1cb5bbdd617f6f1bc6dc8a417655&attachmentid=489341&d=1400183633
*http://ec.europa.eu/environment/ozone/pdf/danfoss_r290.pdf
Airophile (talk) 03:04, 21 December 2015 (UTC)
replies: text: R-170, R-290, R-600, and R-600a are all there. You have to scroll down. Searching doesn't seem to work because of the coding. Cheers Jim1138 (talk) 10:15, 21 December 2015 (UTC)
thread_title:  Hydrocarbon Refrigerants 

message: Hello fellow Wikipedians,
I have just modified  on List of refrigerants. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
*Added archive https://web.archive.org/web/20101210101528/http://www.epa.gov:80/ozone/science/ods/classone.html to http://www.epa.gov/Ozone/science/ods/classone.html
*Added archive https://web.archive.org/web/20101016052146/http://www.epa.gov/ozone/geninfo/gwps.html to http://www.epa.gov/Ozone/geninfo/gwps.html
*Added archive https://web.archive.org/web/20101209031803/http://www.epa.gov:80/ozone/science/ods/classtwo.html to http://www.epa.gov/Ozone/science/ods/classtwo.html
*Added archive http://www.webcitation.org/6HtctfLPj?url=http://www.engineeringtoolbox.com/Refrigerants-Environment-Properties-d_1220.html to http://www.engineeringtoolbox.com/Refrigerants-Environment-Properties-d_1220.html
*Added archive https://web.archive.org/web/20110726172415/https://www.iiar.org/aar/aar_green2.cfm to https://www.iiar.org/aar/aar_green2.cfm
*Added archive https://web.archive.org/web/20090319184345/http://www.jandrewschoen.com:80/refchart.pdf to http://www.jandrewschoen.com/refchart.pdf
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thread_title:  External links modified 

message: I thought that there were other trademarks, used by other companies, for refrigerants, but I can't remember them. Gah4 (talk) 07:12, 26 May 2020 (UTC)
thread_title:  trademarks 

message: Should olefins have names like ethylene or like ethene?  Whichever one is the IUPAC name, as the column header says, should be used consistently. Gah4 (talk) 02:59, 7 February 2021 (UTC)
thread_title:  olefins 

message: The molar mass claimed by this page and by Honeywell is about twice what refprop claims. In addition, it's about twice what similar mixtures have. I've notified Honeywell of this.Not even Mr. Lister's Koromon survived intact. 20:14, 31 January 2022 (UTC)
thread_title:  R-448a 

message: The GWP100 values come from mixed citations [2,3,4,9,15,21,23,52,56,65,66] and educated estimates [c,g]. Many, though not all, numbers are outdated compared to AR6 Table 7.SM.7 https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Full_Report.pdf
I propose to update the GWP100 values based on AR6 for all pure refrigerants covered by AR6 Table 7.SM.7. A recalculation of the blend GWP100 values would also be needed.
An option is to add the GWP20 values simultaneously, in a column to the left of GWP100, as also done in the AR6 report table 7.SM.7, but I would do that in a separate edit so it can be discussed separately. Mwoc87 (talk) 08:38, 20 September 2023 (UTC)
thread_title:  GWP values - AR6 

message: For most refrigerants the composition is written as a mass fraction.
This should be indicated in the table header as it is not a detail.
The composition for air was entered as a mole fraction and should be converted. 92.40.212.161 (talk) 13:53, 21 December 2023 (UTC)
thread_title:  Mass fraction instead of Mole fraction 

message: I'd guess most readers are looking at this column as a heuristic for practical mininum low-end temperatures, so have changed the value from -78°C to -56.56°C with a note, under the assumptions that most most people looking at this list are looking for a closed-loop fluid and want to avoid operating in a regime with dry solids.
If this is mistaken it should be reverted; if there are common-but-not-universal systems which use dry solids, perhaps both values should be listed; if there are other substances which have high sublimation pressures perhaps they should be similarly modified. BoilingLeadBath (talk) 18:25, 28 April 2024 (UTC)
thread_title:  Boiling point of R-744 (CO2)