http://www.furan.com/furfural_historical_overview.html - the Quaker Oats
feedstock for furfural production was (big shock!) oat hulls. Not likely to
matter what was used from a freight car perspective, as it would all have
been relatively low density.

Dave Smith

On Thu, Feb 14, 2008 at 1:00 PM, proto48er <atkott@...> wrote:

Mark -

Furfural (furanal or furan aldehyde) is a liquid product extracted from
corn cobs. What was in the covered hoppers was the corn cobs
themselves, not the liquid furfural. These were ground up by Quaker
Oats and the furanal was extracted from the mix.

<http://www.davinci-center.org>