[Jewelry making - Article 00287] - Re: [Orchid] Ozone Friendly Torches?

[Lisa Orlando]

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    Okay, now I'm really confused. I keep being told that propane burns
    hotter than butane--Peter just reiterated that. But, in the chart
    just posted by Randy: http://www.flamex.com/gasprop.htm the relative
    'values" are all over the place. I do see that, for  "total heating
    value after oxidation," propane is 19768 BTU/lb., and  butane is
    19494 BTU/lb., but, in every other measure, butane actually  seems
    considerably hotter than propane. Is "after oxidation" the only  one
    that counts? 

Lisa Orlando
Aphrodite's Ornaments
(who keeps thinking about C. P. Snow's book, "The Two Cultures,"-- 
wishing she hadn't spent so much of her life firmly entrenched behind  
the barricades in one "culture" and had at least taken physics and  
chemistry in high school...)

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