Properties and Applications of Chromium III Oxide

A permanent green coloring in cement or lime-bonded construction materials can only be achieved using Cr203. Particularly high purity chromium oxide is used in the aluminothermic manufacture of metallic chromium. 

The importance of green chromium oxide hydrate pigments (CrOOH, Guignet s green) has decreased considerably with the introduction of phthalocyanine pigments. 

The worldwide production capacity for Cr203 is ca. 48 10- t/a. In Western Europe ca. 50% is used in paints and coatings, 25% in construction materials, 10% in enamels and ceramics and 5% for other applications such as in refractory ceramics. 

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