A box truck that was reportedly carrying corrosive materials when it was rear-ended on a New Jersey highway Monday morning violently exploded with firefighters and motorists nearby, according to video captured by a passerby. The truck was rear-ended by a bus at around 9 a.m. Monday on eastbound Route 3 near the Valley Road exit in Clifton. The truck crashed through a sound barrier, which separates the highway from residential properties. A video shared by user @gelo__25 on X, formerly Twitter, who was driving westbound, shows firefighters on the scene, and the truck and the sound barrier burn….