Temperature of Attys??
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How hot does an atomizer get| | Electronic Cigarette Magazine
188 F to vaporize PG 250-300 degrees is what I could dig up on how hot they can get... I'd venture a guess that the 1.5 is at the high end of that range..
188 F to vaporize PG 250-300 degrees is what I could dig up on how hot they can get... I'd venture a guess that the 1.5 is at the high end of that range..
http://www.e-cigarette-forum.com/fo...nt/31335-acrolein-vg-simple-test-results.html
The above link is a test someone did with a 6v mod.
and what Mvgratz said
The above link is a test someone did with a 6v mod.
and what Mvgratz said
Thanks y'all for the into. I'd read somewhere-sometime that it was somewhere just below the boiling point of water. Apparently (250-300) it can get well above that.
I'm still on 3.xV, but using LR atomizers.
I'm still on 3.xV, but using LR atomizers.
ufo, a future REOnaut from Italy, posted these interesting results in the large thread:
http://www.e-cigarette-forum.com/forum/reos-mods/95123-reo-grand-opening-sale-8116.html#post3051261
http://www.e-cigarette-forum.com/forum/reos-mods/95123-reo-grand-opening-sale-8116.html#post3051261
How hot…? Under what conditions?
If an atty is wicking then there is a massive heat exchange between the NiChrome atomizer wire and the liquid juice. Hence vapor. Temperature is relatively low because of the constant heat exchange.
But when the wick is dry, there is no heat exchange. So the atomizer coil heats up to a nice Red/Orange glow. If left unchecked or if more Oxygen is introduced per unit time, such as blowing on the atomizer coil, then the atomizer coil can achieve Yellow hot before it fails.
So if a person wanted to know what the maximum temperature an atomizer coil reaches, they could get a good guesstimation by putting a thermal couple on a toaster element. The elements in a toaster are NiCrome also.
I did this once and got readings of about 475 F. This was at Red hot. Didn’t take any reading at Yellow hot because I didn’t want to sacrifice my toaster in the name of e-Cig science. But it is going to be higher.
If an atty is wicking then there is a massive heat exchange between the NiChrome atomizer wire and the liquid juice. Hence vapor. Temperature is relatively low because of the constant heat exchange.
But when the wick is dry, there is no heat exchange. So the atomizer coil heats up to a nice Red/Orange glow. If left unchecked or if more Oxygen is introduced per unit time, such as blowing on the atomizer coil, then the atomizer coil can achieve Yellow hot before it fails.
So if a person wanted to know what the maximum temperature an atomizer coil reaches, they could get a good guesstimation by putting a thermal couple on a toaster element. The elements in a toaster are NiCrome also.
I did this once and got readings of about 475 F. This was at Red hot. Didn’t take any reading at Yellow hot because I didn’t want to sacrifice my toaster in the name of e-Cig science. But it is going to be higher.
I've read around 250F, but I think that is too low. The flash point of VG is 390F, it will vaporize at lower temps, but not rapidly. So I'm assuming the coil is getting to 390F in most ecigs. People get a burnt taste in the high voltage PVs, I've never used one, and I've never gotten a burnt taste. IMO, I would avoid high voltage PVs.
VG decomposes to acrolein at 280C, or 536F. So it would take a rather high temp to be harmful. Since PG autoignites at 698F, and flames don't shoot out of ecigs, that temp shouldn't be being reached. Could attys be reaching 536F, and could some acrolein be produced in an overly hot atomizer? Possibly. That's one reason I wouldn't use a high voltage PV.
How is it that VG decomposes to acrolein at a lower temp than its autoignition temp? I don't know, maybe the decomposition takes time or is incomplete.
Acrolein is toxic and carcinogenic, so if atomizer coils are getting above 536F, then ecigs could be a much greater health risk than expected.
The coils only get red hot when dry burned, keeping them properly wicked and coated with juice probably keeps the temps from reaching dangerous highs.
I would say that if someone is getting a burned taste, they should quit vaping until the problem is resolved, but that's just my opinion.
VG decomposes to acrolein at 280C, or 536F. So it would take a rather high temp to be harmful. Since PG autoignites at 698F, and flames don't shoot out of ecigs, that temp shouldn't be being reached. Could attys be reaching 536F, and could some acrolein be produced in an overly hot atomizer? Possibly. That's one reason I wouldn't use a high voltage PV.
How is it that VG decomposes to acrolein at a lower temp than its autoignition temp? I don't know, maybe the decomposition takes time or is incomplete.
Acrolein is toxic and carcinogenic, so if atomizer coils are getting above 536F, then ecigs could be a much greater health risk than expected.
The coils only get red hot when dry burned, keeping them properly wicked and coated with juice probably keeps the temps from reaching dangerous highs.
I would say that if someone is getting a burned taste, they should quit vaping until the problem is resolved, but that's just my opinion.
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