Philip Morris buys patent for nicotine aerosol technology, may be better than e-cigarettes

[Thulium]

Correction - I would think charcoal filter would not be a problem.

Probably not, but it is possible that propylene glycol could absorb something from the charcoal on its way to your lungs and there's really no reason to risk additional "unknown unknowns". All reports thus far have found nothing of concern in the actual vapor when used as intended--the only real risks mentioned so far are hypothetical scenarios of improper use since you would pretty much need to intentionally DRINK a rather large amount of e-liquid to get anywhere near a toxic amount of anything.

 

[nopatch]

The HCL experiment was to determine the suitability of using an acid for delivery of nicotine.

The patent description continues:

However, due to the chemical reactivity and corrosive nature of the acid and base chosen for this experiment, alternative constituents were evaluated that are more amenable to human use such as non-corrosive acid alternatives, including volatile and low-volatility organic acids (e.g., fatty acids). Experiment #2: Screening for Suitable Acid Candidates for Use in the Development of Acid Over Nicotine Base Aerosol Delivery Arrangement....


The alternative acid selected was Pyruvic acid which is quite safe as it is generated naturally in human metabolism; yet the patentee opines more studies are needed to be done to establish safety.Not quite the kind of confidence e-cig aficionados express in VG or PG .

 

[nopatch]

Dear friend - don't get angry, but my frank personal opinion is - MSDSs should be studied by qualified personnel. Layman reading it might feel sick in a matter of seconds.
Pyruvate is a natural product that could be found in any human organism. It comes from glucose during the glycolysis process. Then it turns into acetyl CoA during decarboxylation process. All of those are absolutely natural.

The important thing here is quantities.Each puff contains approximately 0.4 mg nicotine pyruvate(Approx: 0.2 nic and 0.2 pyru).Assuming that 20% pyruvic acid used remain unreacted the free pyruvic acid in the inhaled Puff will be approx 0.04 mg.

 

[JW50]

The important thing here is quantities.Each puff contains approximately 0.4 mg nicotine pyruvate(Approx: 0.2 nic and 0.2 pyru).Assuming that 20% pyruvic acid used remain unreacted the free pyruvic acid in the inhaled Puff will be approx 0.04 mg.

How does that compare with a puff from an e-cig?

 

[Thulium]

How does that compare with a puff from an e-cig?

Obviously this depends on the "size" of the puff. In the FDA's preliminary study of e-cigarettes from njoy and Smoking Everywhere, they simulated a 100ml puff and detected up to .0432mg of nicotine in njoy Menthol "HIGH". http://www.fda.gov/downloads/Drugs/ScienceResearch/UCM173250.pdf