Chrome yellow and vibrant color and strong; low density, non-toxic, but some varieties of light, heat, solvent and migration resistance is often not as good as inorganic pigments. Endless varieties change color, colorful, but there is a certain intrinsic link between a variety of colors, each color can be used to determine the three parameters, namely hue, lightness and saturation. Color is black with each other mutually distinguishing features, feel decisions of each wavelength in chromatography and surface composition of the emitted light on the human eye can distinguish red, yellow, green, blue, purple and other features. Lightness, also known as luminance, expressed varying degrees of light and dark objects appearance characteristic value; comparing the brightness of colors, this color will have a bright and darker points. Saturation, also called the degree of color, showing characteristic values of the object appearance color shades, with bright colors and make Yinhui of difference. Hue, lightness and saturation form a three-dimensional, with the establishment of the scale of these three, you can use numbers to measure the color. Nature kaleidoscope of colors, but the most basic red, yellow, blue, called primary colors. chrome yellow living in hiding between shallow and deep chrome yellow chrome yellow, light chrome yellow with equal brightness, better than the deep chrome yellow, acid resistance and light chrome yellow equal, better than the deep chrome yellow, poor alkali resistance, good dispersion. Nitrates such as chrome yellow is lead nitrate, chromate, sodium dichromate, such as raw materials, strict control of the reaction conditions to form a stable monoclinic crystalline chrome yellow particles by filtration, drying and crushing. Mainly for paint, especially signpost coatings, inks and plastics.