At what temperature, is sodium silicate immersed in the cast for salva

1.	At what temperature, is sodium silicate immersed in the cast for salvaging?
A.	125¬¨¬®‚Äö√†√ªF
B.	175¬¨¬®‚Äö√†√ªF
C.	225¬¨¬®‚Äö√†√ªF
D.	275¬¨¬®‚Äö√†√ªF
Answer» C. 225¬¨¬®‚Äö√†√ªF

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