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Manufacturing of Glass

What is annea...

Question

What is annealing of glass? Name the colour obtained when (i) Ferric compounds, (ii) Cobalt compounds are added to the mixture of molten glass.

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Solution

Annealing of glass is a process of slowly cooling hot glass objects after they have been formed. Yellow coloured glass is obtained when the ferric compounds are added and blue coloured glass is obtained when the cobalt compounds are added.

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