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Optical basicity

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 … WebHello Kai Fauth, Slag 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 …

Frontiers Influence of Optical Basicity on Cu+ Luminescence in ...

WebMar 16, 2024 · Transmetalation is accompanied by relevant optical absorption changes and quenching of the fluorescence emission, leading to high selectivity and sensitivity of the chemosensor, with the advantage of not requiring any sample pretreatment or pH adjustment. ... Transmetalation is strongly influenced from the Lewis basicity of the … 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 … new construction homes manatee county https://prediabetglobal.com

Polarisability and polarising power of rare earth ions in glass: an ...

WebAug 9, 2024 · The Figure S1b presents the optical basicity behavior for SixMg, SixCa, SixNNa, and SixNLiNa glasses in a higher magnification. The optical basicity is found for all silicate glasses to increase approximately linearly with total modifier content, while pyrophosphate glasses appear to partially deviate from this trend. WebApr 28, 2024 · The optical basicity follows the same trend as the electronic polarizability, which can be attributed to the more acidic nature of P 2 O 3 compared with TiO 2. Moreover, the decrease of the optical basicity with increasing TiO 2 content supports the low ability of TiO 2 compared with P 2 O 5 to transfer electrons to the surrounding cations. internet providers in rural texas

Anion polarizabilities in oxynitride glasses. Establishing a …

Category:Basicity, Electronegativity, Optical Parameters and Radiation ...

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Optical basicity

Optical Basicity: A Scale of Acidity/Basicity of Solids and …

WebIt is shown that optical basicity avoids the confusion that can arise from the use of empirical basicity ratios, particularly with regard to the effect of magnesia, and in addition, facilitates... WebApr 12, 2024 · Few reports exist on the effect of the basicity of refining slag on inclusions in 15-5PH stainless steel and its removal efficiency. In this study, the effects of various basicities on the formation and removal efficiency of inclusions in molten steel were investigated. To investigate the effect of the chemical makeup of slag on the non-metallic …

Optical basicity

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WebApr 15, 2007 · This relationship presents a general trend toward an increase in the oxide ion polarizability with increase in optical basicity. The Λ values estimated from α O 2-using Eq. (6) are given in Table 1 (columns 9–10). Large α O 2-(n) values over 2 Å 3 and large Λ values over 1.0 are obtained. That is, the rare earth oxides showing electronic polarizability … WebFinding a parameter of the same type for solid oxides was not so easy. Modern theories of reactivity propose to consider the oxidizing power, acidity, basicity, and reducing power, as steps along a same continuum, instead of distinct phenomena [3]. Among parameters, Zhang’s scale of electronegativity [4], optical electronegativity and optical ...

WebThe optical basicity Λ has been evaluated depends on the optical band gap and the refractive indexdata for two different ternary glass systems. Also the uncertainty of Λ in the two cases was estimated, hence we can predict … WebNov 28, 2024 · The experimental results show that LS significantly increases with the increase of temperature, basicity, and Na2O content, whereas it decreases with the …

WebOct 5, 2009 · The results showed that an increase of the calculated optical basicity was related to an increased number of bubbles in the glass samples. The oxygen activity in the melt during fining decreased with increased optical basicity. Document Type: Research Article. Publication date: 01 October 2009. WebRefractivity data for aluminosilicate glasses (densities and refractive indices) have been used to examine the relationship between oxygen polarisability, alpha (O2-), and optical basicity, and also to calculate the basicity moderating parameter of …

WebJul 17, 2024 · The optical basicity of present glasses are also estimated. Moreover, we studied many desirable features such as density, molar volume, oxygen packing density and the average phosphorus–phosphorus distance.

For oxides, MO (M = Mg, Ca, Sr, Ba), the basicity moderating parameter of M gover… Arguments are presented justifying the use of fluoride optical basicity values (e.g… The optical basicity trend in alkali borate glasses has been studied in detail [2,13-… The basicity of the oxidic groups AlO 4 5−, SiO 4 4−, PO 4 3−, SO 4 2−, ClO 4 −, ca… The basicity of an oxide glass can be measured experimentally from the frequenc… new construction homes mason ohioWebFeb 13, 2024 · However, whilst optical basicity can provide useful empirical correlations (e.g. sulphide capacity of ladle slags ), these values have not been successfully linked to … new construction homes marvin ncWebFeb 25, 2002 · The electronic polarizability and optical basicity of La 2 O 3 and related glasses have been determined from ultraviolet absorption spectra and calculations based … new construction homes marrero