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Characteristics of Polymers and Polymerization Processes
Published in Manas Chanda, Plastics Technology Handbook, 2017
A wide variety of inorganic acid organic materials are added to polymers to impart color. For transparent colored plastics materials, oil-soluble dyes or organic pigments (such as phthalocyanines) having small particle size and refractive index near that of the plastic are used. Others, including inorganic pigments, impart opaque color to the plastic. Some of the common colorants for plastics, among many others, are barium sulfate and titanium dioxide (white), ultramarine blues, phthalocyanine blues and greens, chrome green, molybdate organs, chrome yellow, cadmium reds and yellows, quinacridone reds and magentas, and carbon black. Flake aluminum is added for a silver metallic appearance, and lead carbonate or mica for pearlescence.
Building Material Components: Old and New, Natural and Synthetic
Published in Kathleen Hess-Kosa, Building Materials, 2017
Crystalline silica dust and welding fumes from torch cutting and welding on lead-based paint (typically white or red) or lead–chromate paint (typically chrome yellow) that has been applied to beams and structural steel pose an OSHA-regulated occupation exposure risk. Crystalline silica is in multiple building materials—old and new. Painted structural steel should be tested prior to welding.
Drying Solids
Published in John J. McKetta, Unit Operations Handbook, 2018
Some typical products dried in conveyor dryers are yeast, charcoal briquettes, synthetic rubber, catalysts, soap, glue, silica gel, titanium dioxide, urea formaldehyde clays, white lead, chrome yellow, and metallic stearates.
Assessing the Impact of LED Lighting on the Stability of Selected Yellow Paint Formulations
Published in LEUKOS, 2020
Emma Richardson, Elizabeth Woolley, Asya Yurchenko, David Thickett
In this article, we specifically report on three yellow pigmented linseed oil and watercolor paint formulations, namely, lead chrome sulfate (chrome yellow), arsenic sulfide (orpiment), and cadmium sulfide (cadmium yellow). The oil paint and watercolor samples were prepared according to recipes reported in original treaties and accounts (Masschelein-Kleiner 1995) and are outlined in Section 2.2. These samples were exposed to accelerated aging regimes following a 9-month drying period.