09/08/2026
Official safety investigations and hazardous materials tracking reports for this specific incident identify the material being transported as a water purification agent (specifically ferric chloride / iron(III) chloride), which is categorized as a corrosive liquid substance.
What is Happening in the Video:
The Reaction & Pressure Buildup: Ferric chloride solution is typically manufactured or stored with an excess of hydrochloric acid. If contamination occurs, or if it reacts with incompatible materials or moisture/impurities under rising temperatures, it can undergo rapid decomposition or exothermic reactions, causing severe internal pressure to build up inside the tanker.
The Yellow/Brown Plume: The dense yellow-to-brown gas and fumes venting from the top and eventually bursting out are characteristic of acidic nitrogen oxide vapors (\text{NO}_2) or acidic chlorine gas fumes driven by severe over-pressure and boiling liquid expansion.
The Rupture: As seen at the end of the clip, the extreme pressure eventually breaches the relief valves or forces a violent discharge of the pressurized liquid chemical out onto the ground
