The chemical synthesis method to α-Fe2O3 main component of red inorganic pigments. Dark red powder.
The refractive index of 2.94 to 3.22. Oil Absorption, particle shape and size, surface area, the relative density from Preparation decision. As production methods and the different operating conditions, and their crystal structure and physical properties vary widely, the color changes from blue to orange to light Ziguang between. Coloring and hiding power are great. Density 5-5.25 An excellent light fastness and heat-resistant properties, and atmospheric effects of resistance, resistance to dirty gas, all the alkali resistance. The concentrated acid only in the heating of gradually be dissolved.
Mainly used in the coatings, plastics, building materials, leather coloring pigments, can also serve as a corrosion resistant coating pigments, but also can be used as a polishing agent, and the preparation of ferrite materials.
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