TY - MANSCPT DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: No Known Copyright TI - Mildred Wells using Hart moisture meter at Hercules Hopewell plant ID - x633f169f AU - Hercules Incorporated DA - 1961/11// YR - 1961 AV - Photographs from the Records & Ephemera of Hercules Incorporated, Box 1, Folder 38 VL - Photographs from the Records & Ephemera of Hercules Incorporated, Box 1, Folder 38 AN - Photographs from the Records & Ephemera of Hercules Incorporated, Box 1, Folder 38 UR - https://digital.sciencehistory.org/works/x633f169f AB - General view of employee Mildred Wells using a Hart moisture meter to measure the moisture in a sample of carboxymethyl cellulose (CMC) at the Hercules Powder Company plant in Hopewell, Virginia. Also known as cellulose gum or tylose powder, CMC is a cellulose derivative commonly used as a thickening agent or to stabilize emulsions in a range of materials, including toothpaste, water-based paints, detergents, and various paper products. 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 - Scientific apparatus and instruments KW - Research, Industrial KW - Hercules Incorporated KW - Corporations KW - Cellulose KW - Women employees KW - Wells, Mildred LA - ER -