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Copper mining and sulphuric acid plant. Copperhill, Tennessee

Copper mining and sulphuric acid plant. Copperhill, Tennessee

Picryl description: Public domain image of a coal mine, mining, free to use, no copyright restrictions.

Denver, Colorado. Steel ship parts getting a bath of sulphuric acid at one of the eight Denver plants which prepares the parts and sends them to Mare Island for assembly

Denver, Colorado. Steel ship parts getting a bath of sulphuric acid at...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description

Denver, Colorado. Workers giving ship steel a thorough rinsing after it has been "pickled" in the highest steel "pickling" vat in the world. The "pickling" operation, giving steel a sulphuric bath to remove mill scale, is a common sight at Seaboard Shipyards, and is something unique at the mile-high Denver fabricating plant and an illustration of American industrial ingenuity

Denver, Colorado. Workers giving ship steel a thorough rinsing after i...

Public domain photograph - historical image of Colorado, United States, free to use, no copyright restrictions image - Picryl description

Conversion. Copper and brass processing. Pickling lengths of copper water tube in a brass and copper mill. After annealing, or softening by heat to reduce brittleness and allow further drawing, tubes are "pickled" in a sulphuric acid solution to remove oxide and scale that result from the anneal. Bundles of the tubes are picked up by electric cranes and transported from the pickle to a rinse bath of water. The tubes are then returned to the drawbench for re-drawing down to smaller diameters. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. Pickling lengths of copper wa...

Public domain photograph - historical image of Ohio, United States, free to use, no copyright restrictions image - Picryl description

[Students in class learning how to prepare sulphuric acid, Hampton Institute, Hampton, Virginia]

[Students in class learning how to prepare sulphuric acid, Hampton Ins...

Frances Benjamin Johnston Collection. Public domain photograph of cabinet, furniture, free to use, no copyright restrictions image - Picryl description

Honor memory of sleep producer. Doctors attending the American Medical meeting in Washington D.C., honor memory of Crawford [...] of Georgia, discoverer of the use of sulphuric ether [...]thetic in surgery, March 30, 1842, at Jeffereson Jackson, [...]gia, left to right: Dr. Thomas A. Grooner, Dr. Charles H. Mayo [...]s Long Taylor, daughter of Dr. Long

Honor memory of sleep producer. Doctors attending the American Medical...

Picryl description: Public domain image of a statue, monument, sculpture, free to use, no copyright restrictions.

Copper mining and sulphuric acid plant. Copperhill, Tennessee

Copper mining and sulphuric acid plant. Copperhill, Tennessee

Picryl description: Public domain image of a miner, coal mine, free to use, no copyright restrictions.

Copper mining section between Ducktown and Copper Hill, Tennessee. Fumes from smelting copper for sulphuric acid have destroyed all vegetation and eroded the land

Copper mining section between Ducktown and Copper Hill, Tennessee. Fum...

Public domain photograph of United States countryside, nature, during 1930s, free to use, no copyright restrictions image - Picryl description

Denver, Colorado. A worker spraying a protective coat of orange paint on steel ship parts which have just been "pickled" in a bath of sulphuric acid to remove mill scale. From this once-abandoned railroad machine shop they will be sent to Mare Island for assembly into escort ships

Denver, Colorado. A worker spraying a protective coat of orange paint ...

Picryl description: Public domain photograph of lumber, lumberjack workers, 1930s, Great Depression, economic conditions, free to use, no copyright restrictions.

Six stages of fat salvage. Shipped in metal drums, the glycerine is no longer recognizable as waste fat. Its nitric and sulphuric acids are added, it becomes deadly nitroglycerine for explosives. When gylcerine is allocated to one of our allies, it is usually shipped in its harmless state

Six stages of fat salvage. Shipped in metal drums, the glycerine is no...

Picryl description: Public domain image of military shooting, machine gun, artillery, armed conflict, free to use, no copyright restrictions.

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running them through a series of rolls. From this mill the rods are coiled and are then treated with a dilute solution of sulphuric acid and washed with water after which they are ready to be drawn into wire

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing m...

Public domain photograph of train depot, railroad, free to use, no copyright restrictions image - Picryl description

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running them through a series of rolls. From this mill the rods are coiled and are then treated with a dilute solution of sulphuric acid and washed with water after which they are ready to be drawn into wire

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing m...

Picryl description: Public domain image of railway tracks, train station, railroad building, free to use, no copyright restrictions.

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running them through a series of rolls. From this mill the rods are coiled and are then treated with a dilute solution of sulphuric acid and washed with water after which they are ready to be drawn into wire

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing m...

Public domain photograph - Montana Folklife collection, ethnography, United States, free to use, no copyright restrictions image - Picryl description

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running through a series of rolls. From this mill the rods are coiled and are then treated with a dilute solution of sulphuric acid and washed with water after which they are ready to be drawn into wire

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing m...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.