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slag

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Slag


In chemistry, the molten mass of impurities that is produced in the smelting or refining of metals.

The slag produced in the manufacture of iron in a blast furnace floats on the surface above the molten iron. It contains mostly silicates, phosphates, and sulphates of calcium. When cooled, the solid is broken up and used as a core material in the foundations of roads and buildings.

© Research Machines plc 2008. All rights reserved. Helicon Publishing is a division of Research Machines plc.


 
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acid
aluminium
bauxite
blast furnace
displacement reaction
ductile
electric charge
electrolysis (chemistry)
electrolyte
haematite
iron ore
malleability
metal
metallurgy
mineral extraction
ore
reaction
reactivity series
reduction
sacrificial metal
slag
smelting
sonorous
steel

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