DEPENDABLE PFIZER CHEMICALS METAL FINISHING
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CLEANING ·
POLISHING
PICKLING
ELECTROPLATING
.ECTROPOLISHING
NON-ELECTROLYTIC DEPOSITIONS ELECTROLYTIC OXIDATION
ETCHING
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GOLD COLORING OF A L U M I N U M
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""* CITRIC A C I D . . . Non-toxic, mild, yet chemically active against scale and t a r n i s h . U s e d e x t e n s i v e l y in t h e f o r m u l a t i o n of g e n e r a l m e t a l c l e a n e r s and pol ishes, particularly house hold products. SODIUM C I T R A T E . . . A pre ferred ingredient in electroless nickel baths, resulting in a b r i g h t e r p l a t e . Also finds wide use in electro plating processes. AMMONIUM CITRATE... Especially useful for the re moval of rust in near neutral solutions. Extremely mild and safe to handle.
GLUCONIC A C I D . . . A n ex cellent sequesterant in alka line d e r u s t i n g s o l u t i o n s ; provides r u s t - f r e e , c l e a n s u r f a c e ready for f u r t h e r treatment. Also highly ef fective in aluminum etch ing a n d p a i n t s t r i p p i n g compounds. OXALIC A C I D . . . T h e most effective chemical for use in automobile radiator clean ers. Also finds wide use in electropolishing and as an ingredient in general metal cleaners. FERRIC AMMONIUM OXA LATE Used extensively in the production of lightfast gold-colored aluminum.
TARTARIC ACID...Excellent complexing agent for cop per in electroplating. TARTAR E M E T I C . . . Used in electrolytic baths for depo sition of silver and anti mony alloys on brass, copper and steel surfaces. ROCHELLE S A L T . . . I n creases efficiency and yields finer-grain deposit in alka line copperplating. C R E A M OF TARTAR . . . An excellent additive for brass and a l u m i n u m cleaning compounds. Its crystalline structure acts as an effec tive abrasive in paste pol ishes. C h e m i c a l l y a c t i v e against tarnish.
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For further details write to Chas. Pfizer & Co., Inc.. Chemical Division. Brooklyn 6, New York. Science for the world's well-being*
Pfizer CHEMICAL DIVISION
Circle No. 3 on Readers' Service Card VOL. 53, N O . 8
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AUGUST 1961
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