Parameter | Attribute |
Pearl pigment | Paint, colour, colour concentrate Acid Yellow 73, D&C;Yellow No. 8, sodium fluoresceine, uranine, C.I. 45350 |
Formula | C20H10Na2O5 |
Structure | |
IUPAC | - |
INCI | - |
CAS | 518-47-8 |
Molar mass | 376.28 g/mol |
Density | ~1.00 g/cm3 (20 °C) |
Solubility | Fully miscible in water |
In paint industry the pigment is used in all types of paint base. It is important to take into account that the pigment is powder based, so that in some systems where there are fewer binders and poorer mixing, there may be chunks. It is also used in the preparation of printing inks. Use: mix thoroughly (well) with the ink. Color intensity depends on the ratio of dye to pigment. Attention: The shades obtained may vary depending on the type and quality of the dye used. The colors displayed on the screen may differ from the colors of the mixed paints. It is always recommended to test the suitability of a color on a small area.
In cosmetics, the pigment is used for coloring a wide range of cosmetic products, for the coloring of transparent and opaque glycerine soaps and other cosmetics. It does not irritate the skin. The colors can be mixed together, e.g. mixing yellow with blue gives various shades of green, blue with fluorescein, various shades of electric green.
In schools, pigments are used in various experiments, e.g. in biology to color flower blossoms blue, yellow or red. In chemistry, pigments are used in PAM demonstrations, comparative spectrometry analysis, and various imaging experiments. In physics, pigments are used to better represent the mixing and stirring of liquids, e.g. The movement of Brownian motion in liquids.
In the heating/refrigeration industry, pigments are used in cooling systems to help distinguish where there is a leak in the heat transfer fluid and where there is simply condensation. The most commonly used colors are blue and fluorescent yellow, red, green. The fluorescent colors make it easy to identify leaks even in low-light areas.
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