The redox equilibria of copper ions in the molten silicate fluxes as a measure of basicity

Autor:	Nobuo Sano, Shigeko Nakamura
Rok vydání:	1991
Předmět:	chemistry.chemical_classification Sulfide Inorganic chemistry Basic oxide Metals and Alloys chemistry.chemical_element Condensed Matter Physics Phosphate Copper Redox Silicate Ion chemistry.chemical_compound chemistry Mechanics of Materials Materials Chemistry Carbonate
Zdroj:	Metallurgical Transactions B. 22:823-829
ISSN:	2379-0229 0360-2141
Popis:	The redox equilibria of copper ions in the molten NaO0.5-SiO2, NaO0.5-NaF-SiO2, NaO0.5-CaO-SiO2, CaO-CaF2-SiO2, CaO-MgO-SiO2, and CaO-SiO2 systems have been measured in order to seek a new measure of flux basicity. The Cu2+/Cu+ ratio decreases with increasing the content of basic oxide. The correlations between the Cu2+/Cu+ ratio and other refining indexes, such as carbonate, sulfide, and phosphate capacities, CaO activity, and theoretical optical basicity are discussed.
Databáze:	OpenAIRE
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