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This can only be used as a very rough guide, for instance if a narrow range of wavelengths within the band 647–700 nm is absorbed, then the blue and green receptors will be fully stimulated, making cyan, and the red receptor will be partially stimulated, diluting the cyan to a greyish hue.
Several of the CPK colors refer mnemonically to colors of the pure elements or notable compound. For example, hydrogen is a colorless gas, carbon as charcoal, graphite or coke is black, sulfur powder is yellow, chlorine is a greenish gas, bromine is a dark red liquid, iodine in ether is violet, amorphous phosphorus is red, rust is dark orange-red, etc.
It also includes a table of physical constants, tables listing the properties of elementary particles, chemical elements, and nuclides, and information about conversion factors that are commonly used in physical chemistry. The most recent edition is the third edition (ISBN 978-0-85404-433-7), originally published by IUPAC in 2007. A second ...
Scheele's Green: yellowish-green pigment commonly used during the early to mid-19th century (AsCuHO 3) Paris Green: It was manufactured in 1814 to be a pigment to make a vibrant green paint; Cadmium pigments. Cadmium green: a light green pigment consisting of a mixture of cadmium yellow (CdS) and chrome green (Cr 2 O 3). Chromium pigments
Rose de France" is defined by its markedly light shade of the purple, reminiscent of a lavender / lilac shade. These pale colors were once considered undesirable, but have recently become popular due to intensive marketing. [8] Green quartz is sometimes called green amethyst; the scientific name is prasiolite. [9]
Learn about the history and meaning behind traditional Christmas colors: red, green, gold, white and purple. Experts explain their origins and significace.
A campfire burning with blue and green flame colorants Different colors of natural flame from a bunsen burner, without additives. Colored fire is a common pyrotechnic effect used in stage productions, fireworks and by fire performers the world over.
Such is the case for the sweeping purple and green lights that can hover over the horizon in the Northern Hemisphere. The phenomenon looks like an aurora but is in fact something entirely different.