Playing around with a few more modern company wraps recently.
Continuing the theme of chemical tank cars on the Algoma Central is CGTX (GATX Rail Canada, formerly Canadian General Transit) 15941, one of a pair of tank cars in sodium hydroxide (also known as caustic soda) service passing northbound through Hawk Junction on train 573/571 on July 13, 2015.
A common use for sodium hydroxide is in the pulp & paper industry; the likely destination for this pair of cars is one of the pulp mills served by the Canadian Pacific along the north shore of Lake Superior, via the interchange at Franz.
Another common industrial acid is sulphuric acid – indeed it is probably one of the most common industrial chemicals shipped by rail. Uses of sulphuric acid are almost endless, but include chemical digestion of wood fibers for paper making and the production processes of fertilizers and numerous other chemicals including hydrochloric acid (as seen in last week’s Freight Car Friday).
Sulphuric acid is often produced in massive quantities as a byproduct of the smelting and refining of metal ores. Based on the (lack of) compression in the truck springs this and the neighbouring white PVCX acid tank car are heading north empty, for interchange to the Ontario Northland for furtherance to the copper/zinc smelter at Noranda, QC.