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Acid–base properties of molten oxides and metallurgical slags

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dc.contributor.author Duffy, John A.
dc.contributor.author Ingram, Malcolm D.
dc.contributor.author Sommerville, Iain D.
dc.date.accessioned 2025-04-11T05:11:41Z
dc.date.available 2025-04-11T05:11:41Z
dc.date.issued 1978
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/18626
dc.description.abstract The application of the Lux–Flood concept to acid–base reactions in oxide systems is discussed in the light of spectroscopic information concerning the “state” of oxide ions. In slag systems (e.g. molten silicates) it is possible for the basicity to be expressed in terms of electron donor power as an optical basicity (Λ), and not in terms of the activity of O2– ions. CaO is chosen as the reference oxide of unit basicity; Λ-values are either measured spectroscopically or calculated from the equation Λ=ΣXiΛi, where Xi and Λi are equivalent fractions and (assigned) basicity values for slag components. The optical basicity scale provides a means for comparing acid–base indicators in oxide melts, rather analogous to the use of the Hammett acidity function (HO) in strong protonic acids and is applicable to multicomponent systems. Possible applications of optical basicity to metallurgy are exemplified by reference to the sulphide capacities (Cs) of iron and steelmaking slags. Data for ≈ 130 blast furnace slags show a good correlation between log Cs and Λ, even for slags which do not contain SiO2. Evidence is supplied that optical basicities can also be derived from ESCA measurements; Λ-values obtained in this way might be useful in assessing the properties of steel making slags. en_US
dc.language.iso en en_US
dc.publisher Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1978, 74 (06) en_US
dc.subject Chemistry en_US
dc.subject Acid-base properties en_US
dc.subject Molten oxides en_US
dc.subject Journal of the Chemical Society : Faraday Transaction - I en_US
dc.subject Metallurgical slags en_US
dc.title Acid–base properties of molten oxides and metallurgical slags en_US
dc.type Article en_US


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