Nitrate Fires: History, Physics, and Safety Legacy
A chilling look at the devastating fires of the nitrate era, and how they shaped modern building codes and safety laws.
Cellulose nitrate was the foundational medium of early cinema, but it was also a highly dangerous chemical compound akin to gun cotton.
The Chemistry of a Nitrate Fire
Cellulose nitrate contains its own chemical oxygen supply. Once ignited, it burns rapidly with intense heat (over 3000°F) and cannot be extinguished by water or smothering. It can burn underwater and releases highly toxic nitrogen oxide gases that are lethal in seconds.
Historic Disasters and Code Reforms
Devastating theater fires and vault explosions in the early 20th century led to massive reforms. Modern buildings, fire walls, automatic deluge sprinkler systems, and specialized vault vents were engineered specifically to contain nitrate combustion.