TY - MANSCPT DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: No Known Copyright TI - Control test at Hercules Hopewell plant ID - r494vm023 AU - Hercules Incorporated DA - 1951/// YR - 1951 AV - Photographs from the Records & Ephemera of Hercules Incorporated, Box 1, Folder 36 VL - Photographs from the Records & Ephemera of Hercules Incorporated, Box 1, Folder 36 AN - Photographs from the Records & Ephemera of Hercules Incorporated, Box 1, Folder 36 UR - https://digital.sciencehistory.org/works/r494vm023 AB - General view of laboratory operator Donald R. Stevens checking the filtration characteristics of viscose solutions produced in the Cellulose Department at the Hercules Powder Company plant located in Hopewell, Virginia. Per notations accompanying the photograph, the test depicted here was one of a series of control tests applied to so-called "chemical cotton," i.e. purified cellulose obtained from raw cotton linters, manufactured at the plant. Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company (later Hercules Inc.) initially specialized in the manufacture of explosives and smokeless powders and subsequently diversified its business to encompass a variety of industrial products, including pine and paper chemicals, synthetics, pigments, polymers, and cellulose. KW - Employees KW - Chemical industry KW - Laboratories KW - Research, Industrial KW - Hercules Incorporated KW - Corporations KW - Cellulose KW - Viscosity KW - Scientific apparatus and instruments LA - ER -