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1937 Fox vault fire

1937 Fox vault fire
Diagram of the 1937 Fox vault fire.jpg
Map of the area involved in the fire
Date 9 July 1937 (1937-07-09)
Location Little Ferry, New Jersey
Cause Nitrate film fire
Outcome Destruction of archived Fox Film Corporation and Educational Pictures silent films
Deaths 1
Non-fatal injuries 2

The 1937 Fox vault fire was a major fire in a 20th Century Fox film storage facility in Little Ferry, New Jersey on 9 July 1937. It was caused by the spontaneous combustion of nitrate film stored in inadequately-ventilated vaults. The fire resulted in one death and two injuries, and destroyed all of the film present.

This fire was responsible for the loss of most of the silent films produced by Fox Film Corporation before 1932. Also destroyed were Educational Pictures negatives and films of several other studios. It brought attention to the potential for decaying nitrate film to spontaneously ignite, and changed the focus of film preservation efforts to include a greater focus on fire safety.

The early motion picture industry primarily used nitrocellulose , commonly called nitrate film. This film is flammable, and produces its own oxygen supply as it burns. Nitrate fires burn rapidly, and cannot typically be extinguished, capable of burning even underwater. Additionally, nitrocellulose is subject to thermal decomposition and hydrolysis, breaking down over time in the presence of high temperatures and moisture. This decaying film stock releases nitrogen oxides that themselves to the decay and make the damaged film burn more easily. Under the right conditions, nitrate film can even spontaneously combust. In part because of substantial variability in the manufacturing of early film, there is considerable uncertainty about the circumstances necessary for self-ignition. Sustained temperatures of 106 °F (41 °C) or higher, large quantities of nitrate film, increased humidity, poor ventilation, and aged or decaying film have all been considered risk factors. Most such fires in film archives have taken place in heat waves during summer months, in closed facilities with limited ventilation, compounding several of these variables. Especially in confined areas, such fires can result in explosions.


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