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[ New Search ] Smoke Stack at a TVA Phosphoric Acid Plant Location : AL Date : Jun, 1942 Agency : OWI Credits : Palmer (OWI Photographer) Owner : FDRL Medium : B&W Photo Control Number : Photographs (General): TVA: Dams: Alabama: Muscle Shoals Enlarged Image Description : TVA Production: Elemental Phosphorus. A stack in the TVA's phosphoric acid plant in the Muscle Shoals area. Phosphoric acid is produced in conjunction with the making of elemental phosphorus. The phosphorus, used in the manufacture of incendiary bombs and shells and of material for "smoke," is produced by smelting phosphate rock, coke and silica together in electric furnaces and condensing the resulting phosphorus gases. When surplus phosphorus is available it is converted into highly concentrated phosphatic fertilized, much of which is shipped abroad under provisions of the Lend-Lease Bill. (June, 1942) Listed Under: [Tennessee Valley Authority][Hydroelectric Power][Industrial Uses]