Spill of ferric chloride being cleaned up on I-95

Well, in the link you provided it says what its used for.
Id imagine its bad for tires of cars who drove behind him

 

couple cars might glow in the dark lol

 

From the MSDS
Water and wastewater treatment; odor removal; adhesive for dye; textile impression
pigment; ink and photoengraving.

http://www.generalchemical.com/assets/msds/GC-0033.pdf

 

Wow, sounds like some nasty stuff. Probably cars with bald tires and etched windshields. "Moved truck to a weigh station", hoo boy, you in heap a trouble now, son.

 

Everyone knows ferric acid comes from milking ferrets.

 

Oh goody. I'm sure the CT DOT shut down that nice quiet stretch of road down for 8-10 hours.

 

I know ferric is somehow made from Hydrochloric acid. When I washed tanks, I cleaned quite a bit of it for a company that made it and had their own trucks. Not sure if it's a legal requirement or if the company had another reason for doing it, but they used frp tanks with 4 bolt flange connections, which would lead me to believe that it is pretty corrosive to metal, compared to most types of acid which are just hauled in regular old stainless tanks.