Violet Tungsten Oxide Color and Properties

Violet tungsten oxide color can be divided into purple, fuchsia, atropurpureus, blue black and blue. After the studies found that violet tungsten powder color relate to its oxygen index, particle tightness and needle major axis. With further studies found that if violet tungsten oxide is purple, then oxygen index slightly higher than normal as well as needle of violet tungsten oxide. If violet tungsten color is fuchsia then the needle is smaller than purple color violet tungsten oxide. However thess two color violet tungsten powder almost kept needle shape, only small part particle are not needle shape. If violet tungsten oxide is atropurpureus then the shape of needle shrink very serious, and began turn to tungsten dioxide. Blue black and purple-blue color violet tungsten oxide producing in the non-normal state with a microscope you can see the difference color between different particles. Using scanning electron microscopy can also see the difference of morphology. Where apart of blue color violet tungsten oxide particle is loose and fine needle shape. Apart of purple-blue color particle are loose and non-needle large particles.

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