Solid absorptance

The fact that the photon does traverse the lattice planes does not mean that the photon wUl be absorbed or even scattered by the solid. The reflectance of the photon is a function of the nature of the compositional surface, whereas absorption depends upon the interior composition of the solid. A "resonance" condition must exist before the photon can transfer energy to the solid (absorption of the photon), hi the following, we show this resonance condition in general terms of both R A. 

Degree of Crafting of the Backbone Polymer. With graft copolymers based on low-density polyethylene, the degree of grafting (defined by grafted PE x 100/total PE) is determined by selective extraction of the homopolymers. With high-density polyethylenes, it is determined by a liquid-solid absorption technique which will be described elsewhere (13). 

The photoconductivity action spectrum generally resembles the solid absorption spectrum. 

Forlan. [RITA] Lanolin, petrolatum, or cholesterol blends emulsion stabilizer, emollient, moisturizer, solubilizer, dispersant, plasticizer for personal care prods. solid absorption base. 

Absorption I) The ability of a porous solid to hold a liquid by cohesion and capillary action 2) Action similar to that of a sponge or blotter in soaking up a liquid 3) As applied to solids, absorption refers to a more or less uniform penetration throughout a solid by any particular component, as distinguished from the existence of a higher concentration of the component at a surface or interface as found in adsorption-, 4) The penetration of liquid or vapor into the solid structure that is, it could be considered a solution with the solid acting as the solvent. 

All the recorded spectra result in an overlay of spectra representing the progress of the photoreaction. This sequence of spectra is called a reaction spectrum. An example is given in Fig. 4.16 for the photoisomerisation of trans- to c. r-stilbene with consecutive rearrangement to phenanthrene. Since the dihydrophenanthrene is very unstable at the chosen conditions and time domain, it is not observable as an intermediate as in flash photolysis experiments [60,61]. In liquids and solids, absorption spectra do not permit the characterisation of the individual reactants. Therefore a reaction spectrum merely informs the photochemist about the complexity of a reaction at first glance. In addition, wavelengths can be selected which best represent the... 

Liquid + solid Absorption + chemical Varies Some slurry wash processes for FGD... 

In addition to surface adsorption, contaminant molecules can also be absorbed, which occurs by an initial adsorption event, followed by permeation into the bulk of the solid. Absorption can occur by permeation of soluble contaminant molecule into the bulk, or by migration of molecules into cavities of porous or cracked solids. It can be argued that the latter case is really a type of adsorption to the inner surfaces of the pores however, disposition of this sort results in contaminant... 

The infrared region beyond 35 fi can be extremely useful to chemists, physicists, and solid-state researchers. Absorption lines in this region can be attributed to vibrational-rotational and to pure rotational transitions in gases. In solids, absorption lines can be caused by molecular vibrations, lattice vibrations and molecular librations, and also by electronic transitions in semiconductors Vibrational spectra of heavy-metal compounds can also be found in this region. 

Piriou, B., and F. Cabannes, 1967. Physique des solides. Absorption infrarouge de la magnesie. Compt. Rend, 264 630. 

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