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Carbon tetrafluoride is not flamable so I think it can not have autoignition temperature. — Preceding unsigned comment added by 83.23.192.44 ( talk) 16:43, 1 August 2011 (UTC)
I am no expert on this gas, but I do know that fluorine is an element that breaks lots of trends but I don't know if CF4 has the same effects as compounds like CCl4 on the ozone layer. I would appreciate it if someone could clarify this article. - x42bn6 Talk 09:15, 3 September 2005 (UTC)
I like "carbon tetrafluoride" better.
Excuse me, but I arrived to this article redirected from the voice "SS-5 'Skean' (R-14)" in the voice "Strategic Rocket Forces". It seems there's an error in the redirection. Bye!
There's a lot of bullshit links to this page. Some ignorant person keeps linking a redirect called CFC-14 here, constantly reverting any attempt I make at fixing the problem, despite the fact that there is obviously NO chlorine in tetrafluromethane. I guess thats the "new science" that goes along with crap like replacing AD with CE and woman with womyn... Zaphraud ( talk) 02:32, 12 December 2007 (UTC)
CFC-14 originally redirected to
Carbon tetrachloride. After a RFD debate, it was re-targeted here. Zaphraud objects to that. However, this article states that CFC 14 is an alternate name. In addition,
carbon tetrafluoride also redirects here and the article has that as one of its
IUPAC names.
This and
this Oxford University page seem pretty clear in showing CFC-14 & carbon tetrafluoride as synonymous with tetrafluoromethane. A quick google search also
shows that CFC-14 is equated with tetrafluoromethane. Based on all that, I closed the RFD as a re-target to this page.
If the article and above sources are incorrect, then this article needs to be fixed & the redirects removed. However, the CFC-14 shouldn't be removed on its own and the remainder left. That would simply be masking any real problem with the article being wrong. --
JLaTondre
11:45, 12 December 2007 (UTC)
The formally correct code would be PFC-14, as used for all perfluorocarbons. A description of all codes is in haloalkane. I edited the table there to show the common but as pointed out above incorrect use of cfc-14 and hf-14 as well. Wim van Dorst ( Talk) 14:47, 23 December 2007 (UTC).
to improve readability, here is the burdensome (IMHO) physical data -- Additional physical properties --
Property | Value |
---|---|
Density (ρ) at −196 °C (solid) | 1.943 g.cm−3 |
Density (ρ) at -183 °C | 1.89 g.cm−3 |
Density (ρ) at −127.8 °C (liquid) | 1.603 g.cm−3 |
Density (ρ) at −80 °C (gas) | 1.317 kg.m-3 |
Density (ρ) at 15 °C (gas) | 3.72 kg.m−3 |
Density (ρ) at 21 °C (gas) | 3.858 kg.m−3 |
Triple point temperature (Tt) | −183.7 °C (89.4 K) |
Critical temperature (Tc) | −45.5 °C (227.6 K) |
Critical pressure (pc) | 3.793 MPa (37.43 bar) |
Critical volume (Vc) | 0.142 dm3.mol−1 |
Critical compressibility (Zc) | 2.77 |
Latent heat of fusion (lf) at triple point | 8.09 kJ.kg−1 |
Latent heat of vaporization (lv) at −127.8 °C | 135.7 kJ.kg−1 |
Specific heat capacity at constant pressure (cp) at 30 °C | 58 J.mol−1.K−1 |
Specific heat capacity at constant pressure (cp) at -145 °C | 80.08 J.mol−1.K−1 |
Specific heat capacity at constant volume (cv) at 30 °C | 49 J.mol−1.K−1 |
Heat capacity ratio (κ) at 30 °C | 1.178571 |
Compressibility Factor (Z) at 15 °C | 0.9981 |
Acentric factor (ω) | 0.177 |
Dipole moment | 0 D |
Viscosity (η) at 0 °C | 16.1 μPa.s (0.0161 cP) |
Viscosity (η) at −60.3 °C | 17.0 μPa.s (0.0170 cP) |
Surface tension (σ) at −80 °C | 6.4 mN.m−1 |
Thermal conductivity (λ) at 0 °C | 15.03 mW.m−1.K−1 |
perhaps a separate data page should exist as it does for tetrafluoroethane. - Shootbamboo ( talk) 23:25, 29 November 2008 (UTC)
References
Where did the information that "long term exposure can cause severe heart damage" come from? All the many Safety Data Sheets I have read state no long term exposure effects. 81.154.242.90 ( talk) 13:51, 19 July 2013 (UTC)
I agree. Asphixiation yes, other effects I have never heard of. I notice there are no references. F2Andy ( talk) 07:03, 19 May 2014 (UTC)
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