The Inorganic pigments have a long history. Inorganic pigments are almost exclusively based on oxide, oxide hydroxide, sulphide, silicate, sulfate, or carbonate and they are classified into four main groups: white pigments, black pigments (carbon black), colored pigments, and specialty pigments. The fields of application for iron oxide and chromium oxide pigments are wide ranging ? as is the spectrum of colours. The primary applications are found in the construction, paint and coatings as well as in the plastics industries.
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