What is the role of cryolite in the metallurgy of aluminum?
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Answer:
Cryolite is used to lower the fusion temperature of electrolytic mixture.
Explanation:
The melting point of alumina very high (2323k). It is therefore, mixed with cryolite (Na3AIF6) which lowers its melting point to 1173 K. Moreover, cryolite also increase the electrical conductivity of alumina.
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Metallurgy is a domain of materials science and engineering that studies the physical and chemical behavior of metallic elements, their inter-metallic compounds, and their mixtures, which are called alloys.
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