Not all pigments have the same capacity of tinting, , which means that the same amount of two different pigments will produce a different intensity of color. It is imperative that the coloring agents can be used in a confident and safe manner.Īny tinting material can be of great use in many fields: dyes, textile applications ceramic, ,, heterogeneous catalysis marine sediments mining in order to study and to determine the content or the identification of minerals, ,, farmland for studying the amount of iron oxide archaeological glass building materials, ,, restoration and protection, ,, , environmental safety, and also in medical, pharmaceutical, and food fields in order to detect and estimate the presence and quantity of substances,. One very important aspect is to get permanent colors without producing adverse effects on mortars and concrete. Others pigments have been produced by synthesis in the laboratory: litharge (reddish), massicot (yellow), red lead (orange), chromium oxide (green), black of coal, and Egyptian blue. Nowadays and in antiquity, the number of mineral pigments is very high, for example, hematite (reddish, orange, purple, and brown), goethite (yellow), lepidocrocite (brown), calcite (white), dolomite (white), celadonite (green), malachite (green), and quartz (translucent and white). Colored mortars and concrete have become popular among engineers and architects for such applications as facades, sidewalks, driveways, floors and other architectural uses.
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