Overheating E-Liquid May Produce Formaldehyde

[Katya]

Hulamoon, I'm sure the good doctor F. will look into it. You must have read his preliminary comments on the subject (when he responded to the NYT article).

He also found formaldehyde in his big study of eliquids to be published soon.

I'm not losing any sleep yet.

 

[Hulamoon]

I swear the NYT is more likely to be 5 times more detrimental to my health than if I smoked 80 a day! And I never thought I'd say this...but Rush Limbaugh's response a couple of months earlier was refreshing to my heart.

As to nicotine mentioned earlier, I don't believe it is a problem but that is imo. But, as to cigarettes, MAIO's are in them because withdrawal from them is extremely difficult. And did you know that if people are given arsenic in minute quantities, their body goes into shock when it stops - the cunning creepiness of big business to ensure that quitting cigarettes is extremely painful, never ceases to disgust me. So I definitely agree with you SDL.

 

[Katya]

The source of arsenic in tobacco are the pesticides used in farming.

According to some statistics, the average American adult takes in 50 milligrams of arsenic daily, mostly from meat, fish and poultry. Some wines also contain arsenic (again, due to pesticides). Arsenic is also present in our tap water (and, occasionally, apple juice.)

Deep breath.

Rush is a great advocate and proponent of e-cigarettes. So are Greg Gutfeld and John Stossel.

Even Mitch Zeller and Stanton Glantz seem to be changing their tune.

 

[Hulamoon]

That doesn't surprise me - and formaldehyde from the same sources in fruits and vegetables too. But nobody mentions those.

With Zeller and Glantz, I remain cynical and just think that BT is now paying them more than BP is

Huh! Where'd the OP go?

The source of arsenic in tobacco are the pesticides used in farming.

According to some statistics, the average American adult takes in 50 milligrams of arsenic daily, mostly from meat, fish and poultry. Some wines also contain arsenic (again, due to pesticides). Arsenic is also present in our tap water (and, occasionally, apple juice.)

Deep breath.

Rush is a great advocate and proponent of e-cigarettes. So are Greg Gutfeld and John Stossel.

Even Mitch Zeller and Stanton Glantz seem to be changing their tune.

 

[Katya]

With Zeller and Glantz, I remain cynical and just think that BT is now paying them more than BP is

Quite possibly. If he plays his cards right, he has a bright future and 6-digit salary as a consultant.

Huh! Where'd the OP go?

OP????

 

[rothenbj]

Feignix, in the couple months you've been vaping, you get the whole thing. You need to understand that the population as a whole, and I include smokers/vapers, has been brainwashed to decades. Much of the population has heard the propaganda for their entire lives. Heck, I was a teenager when they got serious about mind control and it's gotten worse as more money flowed to those advocaqting against tobacco products.

I was convinced by their campaign that smokeless tobacco would have your jaw drop off and was even worse than smoking. It took me a month of research of Swedish snus to understand that it as well as much of the smokeless tobacco has somewhere in the 9x% safer range than smoking and most mouth cancers are due to inhaling tobacco.

I too vaped constantly when I started 5 years ago but I was breaking a 2-3 PAD 43 year habit. I vaped anywhere between 24 and 48 mg liquid for the first 6 months with the only noticeable effect was getting jittery when the nic got too high and the loss of my smoker's cough and night wheezing within 2 weeks by limiting my cigarettes smoked to 6 a day. I didn't get rid of them for nearly 7 months and Swedish snus @ 4-5 portions a day took care of them.

Nothing you experienced with cigarettes applies to vaping as you're learning quickly. Beside the snus, I vape 24mg nicquid at a rate of a ml or 2 ever couple days. Lately I've started using a mech mod, building my own attys and mixing some of my own liquid. The "hobby" has decreased my nic level to 6mg liquid, a lot more flavor and maybe 2-3 ml a day if/when I vape. I still can go without for days with no ill effect. You've got a real good grasp of the environment.

** Edited after reading sonicdsl's post **

I also vape 0mg at times. I have some doubler bottles that I got years ago that I mixed with 48mg to reduce the nic levels. I have a strawberry cheesecake and a chocolate coffee that vape great in my mech mod. Not an attempt to eliminate nic, just a flavor decision and the fact that I enjoy the flavor that much.

 

[rothenbj]

DrMA - I take your point so take this as a little humorous...This is great news foe many men and sexy ladies....Victoria's Secret bras contain less than 20 ppM formaldehyde which is apparently way under the industry standard of 75 ppm for clothing.

L Brands > Formaldehyde Information

In other words formaldehyde is out there and I'll bet it's in huge quantities comparatively speaking. But at the end of the day, for most of us the key is how much less than cigarettes.

I knew they were filled with formaldehyde and always suggested taking them off as quickly as possible (I always volunteered), for the children, of course.

 

[rothenbj]

I swear the NYT is more likely to be 5 times more detrimental to my health than if I smoked 80 a day! And I never thought I'd say this...but Rush Limbaugh's response a couple of months earlier was refreshing to my heart.

As to nicotine mentioned earlier, I don't believe it is a problem but that is imo. But, as to cigarettes, MAIO's are in them because withdrawal from them is extremely difficult. And did you know that if people are given arsenic in minute quantities, their body goes into shock when it stops - the cunning creepiness of big business to ensure that quitting cigarettes is extremely painful, never ceases to disgust me. So I definitely agree with you SDL.

I believe the MAOI's are in the other alkaloids in tobacco that make up about 5% of the alks in tobacco. I don't know if they work independent or in conjunction with nic to give a natural antidepressant effect, but they work wonders for those that need them. I know a have some depression in my physiology, probably the reason I started smoking at 19, and what I get from the 4-5 portions of snus keeps me nice and level.

 

[Nikkel]

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[Nikkel]

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[Nikkel]

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[rothenbj]

Well Nikkel, I really don't know what to say, you seem to have a lot of information. All I know is that on my mech mod running sub ohm, it takes less than a second to create enough vapor for my purposes. At that length of time, my coils don't even glow red and the cap on my rda is barely warm. I suppose that I could generate your quoted 300F degrees if I tried but I highly doubt 300C and 700C is a complete joke. You realize you're talking about. You realize you're claiming that coil is heated to nearly 1300F degrees at 700C don't you?

I think you'd be better served by getting on an automotive sight and protect the world from the emissions of all the gas guzzlers out there and restricting engine output to 75mph because of the inherent dangers to others of allowing cars like my S2000 that can go 165mph. There has to be someone's life out there that is in danger if I decide to take it to the max.

No disrespect, but in your world we really need to eliminate most of what could be dangerous to someone else including household items, air fresheners, perfumes and bras (but whatever you do, don't burn them).

 

[Nikkel]

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[Stosh]

I would rather trust the vaporization temperatures from a bit more scientific source ...http://msdssearch.dow.com/PublishedLiteratureDOWCOM/dh_0037/0901b80380037a64.pdf?filepath=propyleneglycol/pdfs/noreg/117-01540.pdf&fromPage=GetDoc

Heat of Vaporization 25C (77 F)

 

[Nikkel]

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[Stosh]

I think the boiling point is a more relevant figure. When the button is pressed, ejuice boils furiously and almost instantly. If memory servers me right, in the case of pure glycerine that is almost 300C.
I know from personal experience that coils get hotter than 77F. I touched it once and it burned me.
If I could vape at 77F, here in Louisiana, I wouldn't need a battery.

Would you have a link from an actual scientific paper that cites that temperature other than an internet forum?

 

[Rossum]

I would rather trust the vaporization temperatures from a bit more scientific source ...http://msdssearch.dow.com/Published...ycol/pdfs/noreg/117-01540.pdf&fromPage=GetDoc

Heat of Vaporization 25C (77 F)

That's the amount of energy needed to get the liquid from 25C to its boiling point and then push it through its phase-change into a gas. It doesn't tell us much about the maximum temperature a heating element in contact with the liquid might reach. But the boiling point of a liquid does give is some clue:

Boiling point PG: 187C / 369F
Boiling point VG: 290C / 554F

 

[Nikkel]

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[Rossum]

It seems obvious to me that ejuice boils when the coil is energized. Do you agree?

Seems likely.

If so, the ejuice must be at least heated to its boiling point and I suspect higher, because it appears to boil furiously, not lazily.

Well, in liquid form, it can't be heated beyond its boiling point. When you reach the boiling point (at whatever your ambient pressure is) then all the energy goes into phase-change rather than further increases in temperature of the liquid.

It's also difficult get a heating element that's in direct contact with a liquid much hotter than than the liquid's boiling point. So something in the 300C range is probably a reasonable upper bound.

Pull cap off an RDA and fire it. As long as the wicks remain wet, the coil will not glow. Try it in the dark sometime. At a bit over 500C, you should see some glow:

 

[Nikkel]

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