Hydrofluoric acid reboiler at Paulsboro, New Jersey plant of Paulsboro Chemical Indus-
tries. The reboiler was fabricated by Camden Copper Works of Camden, New Jersey.
Handling hot hydrofluoric acid? MONEL* nickel-copper alloy 400 is remarkably resistant to hydrofluoric acid corrosion. The reboiler pictured above handles concentrated hydrofluoric acid at temperatures up to 125°F. (The reboiler is run flooded. Steam enters on the shell side and hydrofluoric acid on the tube side.) The previous material used lasted about four weeks in this application. After more than a
year, MONEL alloy 400 appears to have an almost indefinite service life! MONEL alloy 400 resists all concentrations of unaerated hydrofluoric acid solutions, including anhydrous ...at temperatures up to and including boiling. It isn't affected by small amounts of sulfur compounds or sulfuric acid in hydrofluoric acid solutions. And it is comparatively insensitive to the effects of velocities which
MONEL NICKEL-COPPER ALLOYS 16
C &EN
substantially increase the corrosion rates of other metals. Would you like more information on the resistance of MONEL alloy 400
to fluorine and its compounds, as well as its resistance to other highly corrosive materials such as sulfuric, phosphoric, and hydrochloric acids, caustic alkalies ? Write for a copy of "Engineering Properties of MONEL Nickel-Copper Alloys'.^
HUNTINGTON ALLOY PRODUCTS DIVISION 3
THE INTERNATIONAL NICKEL COMPANY, INC. H U N T I N G T O N , WEST VIRGINIA 25720
