Optical basicity definition

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WebOptical basicity analysis of glasses containing trivalent scandium, yttrium, gallium and indium John A Duffy Chemistry Research output: Contribution to journal › Article › peer-review 18 Citations (Scopus) Overview Cite this APA Standard Harvard Vancouver Author BIBTEX RIS Duffy, J. A. (2005). WebOptical basicity: a scale of acidity/basicity of solids and its application to oxidation catalysis. Elisabeth Bordes-Richard, Pierre Courtine To cite this version: Elisabeth Bordes …

Basicity Definition & Meaning Merriam-Webster Medical

WebIn optics, optical bistability is an attribute of certain optical devices where two resonant transmissions states are possible and stable, dependent on the input. Optical devices with a feedback mechanism, e.g. a laser, provide two methods of achieving bistability . WebAug 13, 2002 · The acid−base properties of germanate glasses cannot presently be compared quantitatively with those of silicate, borate, and several other glasses because the optical basicity of the parent oxide, Λ(GeO2), has not yet been unequivocally established. The usual method of measuring optical basicity, relying on probe ions such as Tl+ or … north mids rugby referees

(PDF) Basicity of metallurgical slags - ResearchGate

WebThe concept of optical basicities initially developed by Duffy for solid oxides was successfully transferred to low melting salts such as ionic liquids (ILs). Several ionic liquids (ILs) were doped with Mn (NTf 2) 2 ( NTf 2 = bis (trifluoromethanesulfonyl)imide) as a probe to investigate the IL anion basicity by means of UV-Vis spectroscopy. WebJul 1, 2001 · The basicity (i.e. %CaO/%SiO2) or J o u r n a l P r e -p r o o f basicity indices (weight ratio of basic oxides to acid oxides) are often used to evaluate the chemical … WebAug 17, 1998 · The optical basicity Λ of the oxides has been estimated on the basis of average electronic oxide polarizability calculated from the refractive index Λ(n 0) and the energy gap Λ(E g). A good agreement has been observed between the optical basicity data obtained using independent initial quantities. north milam wsc

$Optical Basicity and Refractivity of Germanate Glasses$

Electronic polarizability, optical basicity, and interaction …

http://www.ecm.okayama-u.ac.jp/ceramics/Research/Papers/2011/Nanba_JCSJ_119(2011)720.pdf WebOct 1, 2014 · A method for rough estimation of the optical thickness of solar prominences in Halpha line is presented. The method is based on the fitting of observed profiles with the synthetic ones computed... how to scan iphone for spywareWebThis paper reports on different physical and optical properties of Nd 3+ -doped bismuth borate glasses. The glasses containing Nd 3+ in (25 − x)Bi 2 O 3 :20Li 2 O:20ZnO:35B 2 O 3 :xNd 2 O 3 (where x = 1, 1.5, 2 mol%) have been prepared by melt-quenching method. The amorphous nature of the glasses was confirmed by X-ray diffraction studies. north mile jacket

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Optical basicity definition

The Uncertainties of the Calculated Optical Basicity from …

WebBasicity definition: The quality or condition of being a base. The capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base. WebAug 1, 1993 · Optical basicity is particularly useful for oxidic network systems, such as silicate, phosphate, or borate in crystalline, vitreous, and liquid (molten) form. The …

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WebBasicity (in metallurgy), the ratio (in percent by weight) of basic and acidic oxides in iron ore materials (iron ore, sinter, and pellets), and also in blast-furnace and steel-smelting slag. Basicity defines the chemical composition and metallurgical properties of such materials. WebPolarisability and polarising power of rare earth ions in glass: an optical basicity assessment — The University of Aberdeen Research Portal Polarisability and polarising power of rare earth ions in glass: an optical basicity assessment John A Duffy Chemistry Research output: Contribution to journal › Article › peer-review 41 Citations (Scopus)

WebAug 1, 1993 · 4) Optical basicity is a concept arising from a consideration of the ionic/covalent nature of bonding between a Lewis acid and base and is quantitatively …

Webbasicity noun ba· sic· i· ty bā-ˈsis-ət-ē plural basicities : the quality, state, or degree of being a base Dictionary Entries Near basicity basichromatin basicity basicranial See More Nearby … WebSlag Basicity is a measure of the acidic-basic character of the oxides, widely used by the glass scientists, slag metallurgists and some geologists as well. You will get the details …

WebFeb 26, 2015 · A new method (named as DASF: Derivation of absorption spectrum fitting) is proposed for the determination of optical band gap and the nature of optical transitions in semiconductors; this method only requires the measurement of the absorbance spectrum of the sample, avoiding any needs to film thickness or any other parameters.

WebJun 25, 2024 · So, lanthanum is accountable for the increase of non-bridging oxygen due to this shift is obtained. So, the optical bandgap of these glasses has been decreased as well as the refractive index. Polarizability and basicity of the prepared glasses according to the refractive index and optical bandgap have been investigated. north mildred depotWebThe optical basicity addresses the ability of oxide glass in contributing the negative charges in the glass ma-trix. In other words it defines the electron donating power of the oxygen in the oxides glass. The theoretical opt-ical basicity can be calculated by the equation proposed by duffy and Ingram [23] north mid university hospitalWebDec 2, 1997 · (1) is that any number of compositions (containing, for ex- ample, differing proportions of Li20, NazO, CaO, B203, SiO2) can be formulated to produce a glass or melt of given basicity. In other words, AideaI is a quantity devoid of specific structural or mecha- nistic information. how to scan iphone for bugsWebFeb 1, 2024 · The concept of optical basicity (Λ) is particularly suited to binary oxides and oxidic network materials such as silicates to characterize the acid–base nature of glasses and melts and to account for the complexation of metal cations by a variety of anionic … how to scan ips on networkWebThe concept of optical basicities initially developed by Duffy for solid oxides was successfully transferred to low melting salts such as ionic liquids (ILs). Several ionic … north midway park broomfield coWebJul 27, 2011 · Basicity is expressed using the Smith {alpha} parameter scale. A linear relation was found between the oxide electronegativity and the Smith {alpha} parameter, … north mile restaurant and pubWebThe optical basicity of complex nitrides can therefore be calculated by the same method established for oxides using the equivalent fractions and the basicity of the constituent nitrides. The relationship between nitride polarizability α N and basicity Λ(nitride) was found to be linear, with Λ(nitride) = 0.39α N − 0.14 where α N is given ... how to scan items and sell on amazon