Pigments

Pigments are colored, this substance have vary there are organic and inorganic substances. Organic and inorganic insoluble substances used widely in surface coatings, but they are also employed in the ink, plastic, rubber, ceramic, paper, and linoleum industries to impart color.

A large number of pigments are dyes are consumed because different products require a particular choice of material to give maximum coverage, economy, opacity, color, durability, and desired refluctance. White lead, zinc oxide. and lithophone were once the principle of white pigments, colored pigments consisted of prusian blue, lead chromates, various iron oxides, and a few lake colors. Today titanium oxide in many varieties is almost the only white pigment used. Lead pigments, formely of major important, are now prohibited by law for many uses.

The kind example of many colored pigments are as follows:

White hiding pigments:

• Titanium dioxide
• Zinc oxide
• Lithophone
• Zinc Sulfide
• Antimony oxide

Black pigments:

• Carbon Black
• Lampblack
• Graphite
• Iron black

Blue pigments:

• Ultramarine
• Copper phthalocyanine
• Iron blue

Red pigments:

• Red lead
• Iron oxide
• Cadmium reds
• Toners and lakes

Metalics pigments:

• Aluminum
• Zinc dust
• Bronze powder

Yellow pigments:

• Litharge
• Ocher
• Lead or zinc chromate
• Hanza Yellows
• Ferrite Yellows
• Cadmium Lithophone

Orange pigmets:

• Basic lead chromate
• Cadmium orange
• Molybdenum orange

Green pigments:

• Chromium oxide
• Chrome green
• Hydrated chromium oxide
• Phthalocyanine green
• Permansa greens (Phthalocyanine blue plus zinc chromate)

Brown pigments:

• Burnt sienna
• Burnt umber
• Vandyke brown

Metal protective pigments:

• Red lead
• Blue lead
• Zinc, basic lead and barium potasium chromate