I think he may be bullshitting you. Check this out:
> http://chemistry.about.com/od/chemicalweapons/a/teargasexposure.htm
>
I know it's the conventional wisdom there (and here for that matter). but am perfectly willing to consider that the conventional wisdom may be wrong.
That said, I don't see anything in your link indicating that. What am I missing?
For an expert, Helmenstine misses a lot. Liquid antacid, which she never mentions, is the stuff to have.
-- "Hige sceal þe heardra, heorte þe cenre, mod sceal þe mare, þe ure mægen lytlað."