The Truth about Vegetable Glycerine

[White Rabbit]

Like glowplug said "Emotion and logic are poor bedfellows. Logically, vaping is safer. Logically, a comparison argument is totally bogus when trying to prove vaping is safe"

vape More and Prosper

 

[Kent C]

Yeah... Coil and Wick Material is something to Definitely Consider.

And in Fact, that is sort of what I'm getting at.

When I hear someone say that VG is "Safe", does that mean an e-Cigarette is "Safe" to use? I think that is a Leap that I wouldn't take.

Because e-Liquids are made up of Many other Chemicals beside VG. And because Most of the Time the Safety Level associated with something like VG doesn't take in account the Frequency and Dosage that the Average vaper is Exposed to.

Or even the Method in which they are Using the Chemical. (ie: Inhalation vs Topical or Oral Ingestion.)

I think when more Long Term Data is Acquired, that Flavorings, Colorants and Artificial Sweeteners will be shown to Cause more Risk than either VG or PG.

---

BTW Hope you are Doing Well. Haven't seen you around in awhile.

I pretty much stay in 'the gulch' and ego-types.... and not as active anymore - old dog/new tricks, etc.

Agree with much of what you wrote maybe all. Kurt, our resident chemist vapes VG and that's a good sign but I'm sure he has the same long term caveats as most of us too. They just don't trump being off cigs though....

Dr. James Wilson: Dying's easy - living's hard!

Dr. Gregory House: [pause] That can't possibly be as poignant as it sounded.

 

[Traver]

A couple of Questions...

At what Temperature does VG start to Break Down?

And what does it Break down Into?

I can't actually answer your question but after VG vaporizes it is no longer touching the coil. So it can't get any hotter. Or were just curious?

 

[Nermal]

BTW - Maybe it is My Browser. But the Link you posted has Black Text on a Dark Graphic Background.

It's Unreadable.

My experience with difficult backgrounds informs me that using a cursor to highlight the whole thing results in something much more readable.

 

[zoiDman]

I can't actually answer your question but after VG vaporizes it is no longer touching the coil. So it can't get any hotter. Or were just curious?

I was think more about when it is Actually in contact with the Coil.

When you Dry Burn a Atomizer Coil, How hot does it get when it turn Orange?

When you get a Dry Hit from Poor Wicking, What Temperature is the Atomizer Wire?

What is an Average Temperature of a Atomizer wire when a Clearo/Atty is Hitting well?

Stuff like that.

 

[zoiDman]

My experience with difficult backgrounds informs me that using a cursor to highlight the whole thing results in something much more readable.

That's a Good Call.

Thank You.

 

[Petrodus]

Kinda sorta off-topic ...
I prefer PG over VG as well as all mixtures of PG/VG (personal preference thing).
My favorite Internet marketer stocks PG flavors ...
However, all the e-cigarette brick and mortar stores I've found in this area
only sell flavors with PG/VG combination.

Anyone else notice a trend away from marketers offering PG only ??

 

[Traver]

I was think more about when it is Actually in contact with the Coil.

When you Dry Burn a Atomizer Coil, How hot does it get when it turn Orange?

When you get a Dry Hit from Poor Wicking, What Temperature is the Atomizer Wire?

What is an Average Temperature of a Atomizer wire when a Clearo/Atty is Hitting well?

Stuff like that.

VG boils at 554 degrees Fahrenheit so that is as hot as it will get. The coil temperature is also limited by the temperature of the VG if you are only using VG and the coil remains wet. So 554 degrees would be the temperature of the coil. PG has a lower boiling point. With a dry hit it can anything up to the melting point of the wire.
It is like boiling water on a flame in a paper cup. The paper can't get hotter than the water and doesn't burn till the water evaporates.

As for the temperature of a red hot coil, well that depends on what you mean by red. below is a link to a color chart for steel at various temperature range including red hot.

SMEX - Steel Temperature Chart

 

[zoiDman]

... With a dry hit it can anything up to the melting point of the wire.
It is like boiling water on a flame in a paper cup. The paper can't get hotter than the water and doesn't burn till the water evaporates.
...

But there is One Big Difference with Water and an e-Liquid. Water Can't Burn. But an e-Liquid can.

All I'm getting at is that I know the Temperature of a Coil at Dry Burn is High Enough to break Down Both VG and PG. So the Question is, is there ever a point, like when someone gets a Dry Hit, when VG and or PG breaks down?

The Same Question could also be Asked of the Flavoring. The Colorants. And the Sweetener/s.

 

[Traver]

The formula for Glycerin is HOCH2CHOHCH2OH.
So so if it burned the byproducts would carbon dioxide and water.

PG, flavorings, coloring and other compounds in the liquid are another matter but this discussion was about Vg. If anything I would more worried about what happens to the crud that accumulates on the coil. That may well get hot enough to produce some nasty chemicals.

 

[zoiDman]

The formula for Glycerin is HOCH2CHOHCH2OH.
So so if it burned the byproducts would carbon dioxide and water.

PG, flavorings, coloring and other compounds in the liquid are another matter but this discussion was about Vg. If anything I would more worried about what happens to the crud that accumulates on the coil. That may well get hot enough to produce some nasty chemicals.

Yes PG, Flavorings, Colorants and Artificial Sweeteners is a Completely Different Story.

And it might be Safe to say that VG at Low Temps is the Most Benign Compound in an e-Liquid.