I will find out for you when I go back to work.
The contents are a red oxide colored powder, a fine, very fine powder.
We spot the UTLX cars in Lubrizoil all the time, if you can blow up the photo, you will see on the right hand side, near the end, the ledgend, “Spot this car A end first in the Deer Park, Tx plant, spot the B end first in the ****Ohio plant”
(cant remember the name of the place)
The reason for this is because both plants have unloading facitities on one side only, note the discharge chutes face only one direction…
The cars are round because the powder is so fine, it will stick to the sides of a square car, and in the angles and corners…so they are round to allow the powder to flow more freely.
Wierd looking cars eh? When I first looked at them, I though they were used for cement, lime or calcium carbide until I noticed the redish colour. It almost looks like cupric oxide but I could be sure of it. Who ships the powder to Lubrizol? There is a Lubrizol in Niagara Falls Canada but they only every seem to get tankers for lube oil and fuel additives loading.
These cars are of Union Tank Car Company’s Pressure Flow design. Yes, some were used for cement at one time. There may have been up to 400 of these in UTLX series 80100-80499 (built mostly during the 1960s, possibly the early '70s). Most of the cars you see with other reporting marks probably were in this UTLX series originally. One possible exception to that were some cars built for the Seaboard Air Line (by the way, don’t confuse these with cylindrical cars built by another company for SAL and CB&Q!).
If you find any more of these, shoot them on sight! They’re getting rare, and will probably become extinct due to age within the next few years.