Full-spectrum colorants

X-rays can easily determine the presence of PVC via the chlorine atom. Single wavelength infrared is used to separate clear (PET and PVC), translucent (HDPE and PP), and opaque (all pigmented materials and colored HDPE) streams. Full-spectrum infrared can detect differences in... 

Other materials used in electronic devices are also formed under stricdy controlled environmental conditions. Computers could not function without some of these materials, especially indium tin oxide (ITO) for what are called transparent contacts and indium nitride for light-emitting diodes in a full spectrum range of colors. 

Initial results for the main-chain conjugated polymers have already been demonstrated that the full spectrum of colors (red, green, and blue) can be realized with impressive efficiency, brightness, and uniformity. Main-chain conjugated polymers... 

Clear acrylic is as transparent as the finest optical glass. It has a light transmission capacity of 92 percent, an exceptionally low haze level of about 1 percent, and an index of refraction of 1.49, high enough for use in lenses and other optical parts. Colorants can be used to produce a full spectrum of transparent, translucent, or opaque colors. Most colors can be formulated in acrylics for long-term outdoor durability. Acrylics are normally formulated to filter ultraviolet energy in the 360 nm and lower band, but some are opaque to UV light or provide reduced UV transmission. 

X Sylvania Activa 172 (Full Spectrum 6500 K color output) fitted inside 600 mm x 600 mm diffusers CRI = 98... 

Wavelength (A) A characteristic property of a wave related to its color and equal to the length of a full wave, 133 atomic spectrum of hydrogen, 136 color and, 17t... 

These observations inspired Inganas and coworkers [107,497,498] to exploit the principle of steric hindrance to design PTs with emission colors spanning the full visible spectrum. A wide range of 3-substituted and 3,4-disubstituted thiophenes has been synthesized and successfully polymerized by FeCl3 in chloroform, affording polymers 411-424 [466, 498-501] (Chart 2.100). 

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A UVV spectrophotometric method for the specific detection of peroxycarboxylic acids in the presence of H2O2 is based on direct oxidation of ABTS (103) by the analyte in an acidic medium. The spectrum of the resulting green free radical presents five absorption maxima where measurements can be made 406, 415 (the most intense), 649, 732 and 815 nm. Full color development may be accelerated by traces of iodide. The LOD is 1 p,M of AcOOH, with linearity in the 2.5 to 100 p,M range. Note that reaction of 103 with H2O2 in Section in.B.2.a requires peroxidase catalysis. 

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