Summary
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1.
Calcium sulfide forms high-temperature solid solutions in mixed calcium and magnesium silicates which decompose with reduction in temperature. The solubility of calcium sulfide in the studied silicates has a restricted character.
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2.
High-temperature solid solutions based on pseudowollastonite in the CaO-MgO-SiO2-CaS system contain not only CaS but also MgSiO3 with the probable formula of solid solutions(Ca, Mg)Si(O, S)3.
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3.
A connection has been observed between the change in phase composition and viscosity of the melts.
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Rudneva, A.V., Panov, A.S. The effect of calcium sulfide on the phase composition of slags in the system CaO-MgO-SiO2 . Russ Chem Bull 11, 510–513 (1962). https://doi.org/10.1007/BF00904743
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DOI: https://doi.org/10.1007/BF00904743