The doorman for a building at 63rd St. and Madison Ave. in Manhattan mixed water with a chemical trying to melt snow, but when the liquid started to boil the man threw the can onto the sidewalk next to a trash can.
More chemicals spilled onto the sidewalk and caused a smoky reaction, which is when a passerby finally called the incident into 911.
Engine 44 arrived on scene and found that the sidewalk was registering heat over 220 degrees and that the can was over 360 degrees, prompting a hazmat response that lasted over three hours.
