iron oxide violet
Iron oxide violet is a kind of inorganic color pigment, which is in powder form and has fine particles. It has strong hiding power, strong coloring power, and good dispersion phase. It has good light resistance and weather resistance
Properties of iron oxide series pigments
1. Acid and alkali resistance: it is very stable to any concentrated alkali and other kinds of alkaline substances, especially the cement and lime mortar commonly used in buildings, and will not pulverize the cement building components, nor affect its strength. It has certain resistance to general weak acids and dilute acids, but it can also be gradually dissolved in strong acids, especially in the case of heating and concentration.
2. Light and heat resistance: the color will not change under strong sunlight exposure. The color of the exterior wall coating is iron oxide series. Due to the structural limitation, it is stable within a certain temperature limit, and the color begins to change beyond its temperature limit. With the increase of temperature, the degree of change becomes more and more obvious. Iron oxide yellow gradually changes color to iron oxide red when it exceeds 130 ° C, iron oxide purple gradually changes color to dark red when it exceeds 300 ° C, iron oxide black gradually changes color to dark red when it exceeds 100 ° C, and iron oxide brown gradually changes color to red when it exceeds 130 ° C, Iron oxide green gradually changes to dark red when it exceeds 200 ° C. This is only the temperature limit of ordinary iron oxide pigments. At present, many enterprises have better performance. 3. Weather resistance: climate conditions such as cold, heat, dry and wet in the atmosphere have little impact on the pigments. Just because of the good weather resistance, outdoor applications are also very much.
4. Other properties: it is very stable in any dirty gas, such as sulfide, carbon oxide, sulfur oxide, argon chloride and argon oxide. It does not dissolve in water, mineral oil, vegetable oil, water, ester, ketone and other organic solvents and has no penetration
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