MCPX-MONX 23000-23038
MCPX-MONX 23000-23036
R E V I S E D   1 0   J U N E   2 0 2 3

MCPX 23002 • Jim Kinkaid Collection • ACFI Builder's Photo




37 CARS6 AXLESASF or BUCKEYE TRUCKS

  • ACF Industries Lot No. 18-13181, Nov 1966
  • 93,000 pounds Light Weight
  • 301,000 pounds Load Limit
  • 394,000 pounds Gross Weight
  • 22,500 gallons

  • AAR Class : T106 (welded steel tank)
  • Specification No. : ICC 111-A-100-W-1
  • Plate C

  • Built for Monsanto Chemical Co.
  • Used for Elemental Phosphorous service
  • Listed in Official Railway Equipment Register : APR 1966-OCT 1992



    ORER SUMMARY    
     37  •  Apr 66-Jan 69     
     36  •  Apr 69-Apr 71     
     35  •  Jul 71-Jan 73     
     34  •  Apr 73-Apr 79     
     32  •  Jul 79-Jul 86     
     30  •  Oct 86-Jul 90     
     28  •  Oct 90     
     20  •  Jan 91-Oct 91     
     11  •  Jan 92-Oct 92     
    These cars had the lowest gallonage of any RailWhales, which is not surprising since elemental phosphorous was the densest substance shipped in these cars.  It is 80% more dense than water and 10% denser than tetraethyl lead.  Monsanto produces elemental phosphorous at Soda Springs, ID – on the Union Pacific – using locally-mined phosphate ore, so this may have been where these cars originated.  Elemental phosphorus is found in soft drinks, toothpaste, baking and leavening agents, water treatment chemicals, insecticides, and herbicides such including Monsanto's Roundup brand.

    These cars were built with MCPX reporting marks; but between the OCT 1967 and JAN 1973 issues of the ORER, the last three cars (23034-23036) were listed with MONX reportig marks.  Images show these cars with both American Steel Foundries and Buckeye trucks.  It looks like the cars originally had the former and that at least some of them were refitted with the latter, but there isn't enough evidence to say for sure.  As the table on the left shows, 90% of the cars were still listed in the ORER after 20 years, and the last 11 cars disappeared after 26 years.

    MCPX 23002 Jim Kinkaid Collection ACFI Builder's Photo
    MCPX 23012 Dennis Schmidt Riverdale IL   06/08/1991
    MCPX 23013 Mark Hoellar 08/1989
    MCPX 23018 Richard Curts ca. 1968
    MCPX 23032 Dennis Schmidt Lansing, MI   08/06/1991

  • CGP-29 © 2003-2013 Michael M. Palmieri
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