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THE SODIUM HYDRIDE PKOCESS HAS STREAMLINES* DESCALING OF STAIN/LESS STEEL AND OTHER METALS.

REASONS FOR ITS WIDE AMD RAPID ACCEPTANCES x IT IS FASTER THAN PlCKLtNG (MINUTES INSTEAD

HOURS) · DOES NOT SITE THE METAL· USES SIMPLE, STANDARD EOUIPMENT.

THE PROCESS: HYDROGEN (USUALLY PRODUCED BY DISSOCIATING

AMMONIA) IS BUBBLED THROUGH MOLTEN SODIUM TO FORM THE

HYDRIDE, WHICH IS THEN DISSOLVED UP TO 2% IN A

CAUSTIC BATH AT 7O0°C. THE METAL IS DIPPED,

AND THE REDUCED SCALE ' THEN KNOCKED

^^^^m^m^m^ LOOSE BY COLD WATER QUENCH. mÊÊÊÊÊ$ÊÊà&^' SHEETS, RODS, WIRE, STRIP, STAMPINGS

HAVE ALL BEEN DESCALED COMMERCIALLY VIA SODIUM HYDRIDE.

SOMVM AS you usee IT NO MATTER WHAT VOUR SODIUM APPLICA

TION-PLANT, PILOT OR LAB SCALE-U.S.L MAKES THIS METAL AVAILABLE IN THE

FORM AND SIZE YOU NEED. &i% A THERE IS THE GIANT ECONOMY

PACKAGE POR BULK USERS-THE 4 0 -TOW TANK CAR OF SOLID MATERIAL. SODIUM IS ALSO PACKAGED CAST

SOLID IN 55-GAL. STEEL DRUMS OR 5-GAL. STEEL PAILS. THEN THERE ARE THE BRICK FORMS-

IN 12, 5, 2Vi AND I-LB. SIZES-PACKED DRY IN 55-GAL. STEEL BARRELS. FOR

SMALL USERS, l-AND 2-LB. BRICKS CAN BE PURCHASED IN STEEL PAILS

CONTAINING 20-LB. Of SODIUM. MORE DETAILS IN THE U.S.I. BOOK, "HANDLING METALLIC SODIUM ON A PLANT SCALE-.

WRITE FOR YOUR COPY.

âîetoÎ Strength Through Sudwm SODIUM ADDED IN SiVIALL QUANTITIES (0.05%)

TO ALUMINUM-SiLiCOfsl CASTING ALLOY YIELDS REtiNED GRAIN S T K U C - F U K ^ GIVING IMPROVED

TENSILE STRENGTH AND ELONGATION. SODIUM HAS ALSO BEEN USED A S A £>£OXIDfZ£R POR BRASS

AND COPPER AS "WELL· AS THE RETihilNG OF LEAD.

DUSTRIAL CHEMICALS CO.

Division of National Distillers Products Corporation 99 Park Avenue, New York ï 6, Ν. Υ. Brooches in principal cities

SEPT. 10, 1956 C & E N 4 3 9 3