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प्रश्न
What is the role of cryolite in the metallurgy of aluminium?
उत्तर १
Cryolite (Na3AlF6) has two roles in the metallurgy of aluminium:
1. To decrease the melting point of the mixture from 2323 K to 1140 K.
2. To increase the electrical conductivity of Al2O3.
उत्तर २
It lowers the fusion (melting) point of the bath from 2323 K to about 1140 K. ,
It makes alumina a good conductor of electricity.
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