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Photographs

W. Crocker at work at Dearborn laboratory facility

  • Circa 1924

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General view of employee W. Crocker at work in the factory control work area of the Dearborn Chemical Company's 35th Street Laboratory facility and manufacturing plant. Per notations accompanying the photograph, titration is being employed to test the alkalinity (a chemical measurement of a water's ability to neutralize acids) of water samples sent to the laboratory for analysis.

Founded in 1887, the Dearborn Chemical Company was a corporate ancestor of BetzDearborn, Incorporated best known for manufacturing water treatment chemicals for use in boilers and cooling towers.

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  • 7.75 in. H x 9.75 in. W
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  • Courtesy of Science History Institute

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  • Box 17, Folder 13

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Dearborn Chemical Company. “W. Crocker at Work at Dearborn Laboratory Facility,” circa 1924. BetzDearborn, Incorporated Records, Box 17, Folder 13. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/qj72p818c.

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