1546. Which of the following is not used as a medium for high temperature heating? September 7, 2025 by Admin Dowtherm Mercury Liquid metal (e.g. molten sodium) Fused salts (e.g., an eutectic mixture of 53% KNO₃, 40% NaNO₂and 7% NaNO₃) ✅ The correct answer is option B.
