Evaporators used in caustic soda recovery and production plant are made of_______________?
Correct answer: A. Monel metal
- A. Monel metal
- B. Gun metal
- C. Wood metal
- D. Babbitt metal
Explanation
Monel, a nickel-copper alloy, resists concentrated caustic soda and many other alkaline environments. The other listed alloys do not provide comparable resistance for caustic soda evaporators.
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