Which of the following is not used as a medium for high temperature heating ?
(A) Dowtherm
(B) Mercury
(C) Liquid metal (e.g. molten sodium)
(D) Fused salts (
(E) g., an eutectic mixture of 53% KNO3, 40% NaNO2and 7% NaNO3)
Which of the following is not used as a medium for high temperature heating ?
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