Public domain
Production. Mercury. Rotary kiln in a mercury extraction plant at New Idria, California, in which ore is introduced to a temperature of 1,200 degrees Fahrenheit. This heat drives off the sulphur and vaporizes the mercury which is later condensed. Triple- distilled mercury is produced at the plant by
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Credit lineProduction. Mercury. Rotary kiln in a mercury extraction plant at New Idria, California, in which ore is introduced to a temperature of 1,200 degrees Fahrenheit. This heat drives off the sulphur and v. 1942-01-01. Feininger, Andreas, United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.