Talk:List of thermal conductivities

message: The condition of this list has previously been discussed in Talk:Thermal conductivity#Example values for common elements OK?.  It got some work done, but I think I need to be more specific:
* The Electrical Conductivity column, which is more acceptable on a page dedicated to this list, has far too many expressions for the same unit.
* Some materials have their composition described in the Material column, which makes that column hard to scan -- this information could go in the notes.
* Some material compositions link to oxides rather than the elements, which suggests something different from what the text itself says.
* The reference superscripts make the table a burden to read, and the way they've been used inconsistently between the conductivity and temperature columns makes them unhelpful.
Also, in an ideal world, the temperature would be specified once, and all materials would be measured at that temperature.  Specifying two ranges isn't at all clear, most particularly when the references for the ranges aren't consistent with the references for the conductivities. This problem has stopped me from making a separate Reference column to clarify the table. --ToobMug 13:55, 10 February 2007 (UTC)
thread_title:  Cleanup-list Tag 

message: First, a vacuum should be included for reference.
Second, carbon dioxide and methane gases should be included too.  —Preceding unsigned comment added by 69.229.123.10 (talk) 06:55, 1 December 2009 (UTC)
replies: text: Heat transfer through the vacuum does not conform to Fourier's law. For most materials, energy flux between two planes is proportional to cross section and inversely proportional to the distance between the plates (hence the thermal conductivity coefficient has m^-1 in the dimensionality). The flux between two close parallel planes in the vacuum is not related to the distance between them (to the first order). Instead it is governed by Stefan-Boltzmann law, J \approx 4 A \sigma T^3 \Delta T. At room temperature, J \approx cA \Delta T, where c = 5.7 W/(m^2 K). --Itinerant1 (talk) 22:05, 4 August 2012 (UTC)

text: I couldn't avoid the vacuum.  Apart from that and with respect to the thermal conductivity of platinum I had the impression that the way that a platinum resistance thermometer became any good is more involved with the electrical resistance of a platinum wire as a function of its temperature.  Isn't that how it works?Patriot1423 (talk) 05:06, 14 April 2016 (UTC)

text: I always thought that those Kelvins were separated by hyphens.  Since they also resemble a negative sign I suppose that they should probably be replaced with commas.  Anyone else think so?Patriot1423 (talk) 05:06, 14 April 2016 (UTC)
thread_title:  Request for data 

message: Common fluids and their thermal conductivity
Thermal Conductivity of some common liquids
 at a temperature of 300 K
Fluid 	Thermal Conductivity (W/m K)
Acetic acid 	0.193
Acetone 	0.180
Alcohol, ethyl (ethanol) 	0.171
Alcohol, methyl (methanol) 	0.202
Alcohol, propyl 	0.161
Ammonia, saturated 	0.507
Aniline 	0.172
Benzene 	0.167
n-Butyl alcohol 	0.167
Carbon Disulfide 	0.161
Carbon Tetrachloride 	0.104
Castor Oil 	0.180
Chloroform 	0.129
Decane 	0.147
Dodecane 	0.140
Engine Oil, unused 	0.145
Ether 	0.130
Ethyl acetate 	0.137
Ethylene Glycol 	0.258
Freon refrigerant R-11 	0.093
Freon refrigerant R-12 	0.071
Glycerine 	0.285
n-Heptane 	0.140
Hexane 	0.124
Isobutyl alcohol 	0.134
Kerosene 	0.145
Methyl alcohol 	0.212
n-Octane 	0.147
n-Pentane 	0.136
Phenol 	0.190
Propylene glycol 	0.147
Transformer oil 	0.110
Toluene 	0.151
Turpentine 	0.128
Water, Fresh 	0.609
-96.237.79.6 (talk) 00:55, 27 September 2010 (UTC)
thread_title:  Thermal Conductivity Common Liquids 

message: There seems to be some problem when ordering by Thermal conductivity. When trying to order from least to most conductor the Polyethylene foam goes nearly the end of the list where it should be at the start. I have tried formating the values differently but it doesn't seem to have helped.  —Preceding unsigned comment added by 195.65.96.188 (talk) 12:06, 21 October 2010 (UTC)
thread_title:  Problem with the ordering 

message: Reference no. 7 just links to Hukseflux sensors. I assume Hukseflux once published a table containing thermal conductivity values of different materials. This information is no longer accessible and the link to Hukseflux looks more like product advertisement.  — Preceding unsigned comment added by 152.88.255.27 (talk) 16:02, 1 December 2014 (UTC)
replies: text: Reference no. 111 (for sandstone) is also a dead reference now. Looking at archives it seems to be document 15306 from gfz-public. From a quick glance their experimental values are between 1.5-3.1 W/mK which also do not match the values assigned to sandstone on this page. Link here https://gfzpublic.gfz-potsdam.de/pubman/faces/ViewItemOverviewPage.jsp?itemId=item_241013_2 130.159.237.134 (talk) 23:45, 4 May 2023 (UTC)
thread_title:  Dead reference 

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thread_title:  External links modified 

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thread_title:  External links modified 

message: Hello everyone someone put in a value of 0.17 w m--1 K-1 for "Oven Dry Oak" but his source just says oak, not oven dry oak.  I think that that misleading report which is wrecking my detailed wood section should be removed but I don't know who's in charge nor what to do about this.  Any advice?Patriot1423 (talk) 21:23, 17 January 2019 (UTC)
replies: text: On second thoughts I figured it out myself.  All fixed now and really I think that Engineering toolbox is a good outfit and probably a value of 0.17 w ⋅ m-1 K-1 is as good as 0.117 in places where it is going to be either one or the other.  I just changed the label to line it up with what people actually put there.  Now it says "Wood, Unspecified," since that's what it really is.  — Preceding unsigned comment added by Patriot1423 (talk • contribs) 00:02, 18 January 2019 (UTC)
thread_title: Misinformation

message: The list contains a redlinking term that does not seem to be explained further, namely "DIUF Water". What is that? Hobbitschuster (talk) 12:26, 17 June 2022 (UTC)
thread_title:  What is DIUF Water? 

message: I was looking for information the thermal conductivity of various Gallium alloys such as Galinstan. If pure gallium and it's various alloys used in commercial and industrial applications I would greatly appreciate it. 136.36.158.165 (talk) 10:50, 3 January 2024 (UTC)
thread_title:  Gallium alloy thermal interface materials missing. Add? 

message: These tables are badly in need of radical restructuring. To start off with,
* each temperature value and its associated thermal conductivity value should together comprise a separate table row, and the extensive use of line breaks should be avoided.
* each material, currently shown in the left-hand column, should appear instead as a table header, extending across all the columns.
Ehrenkater (talk) 15:47, 12 February 2024 (UTC)
thread_title:  Table structure