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. In those days, in
addition to making furan-based plastics, it was also used for a binder
in green sand castings. The cars probably looked like "roofed hoppers"
(type HTR) and not true covered hoppers (LO). Just guessing - my
ORER's are at home!
--- In STMFC@..., "feddersenmark" <feddersenmark@...> wrote:
of furfural (in this case, finely ground corn cobs probably used fortype
photo of these cars out there somewhere. Does anyone know of a source