Making Nitrate Film, 1920's - Film 96418

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Making nitrate film in a film factory.
Inside a large factory, men in rubber overalls and gloves work around large dishes of still steaming nitric acid, they pick the bowls up and move them. Intertitle: like a frosted window pane. Close up of silver nitrate crystals developing after the evaporation of the nitric acid - they cover the surface of the container like frost. A container full of shards of silver nitrate crystals.