For many years this non-toxic fecidhas servecl as the leading organic acidulantt in foodstuffs ...beverages, candies, jellies, eleseerts. N o w t more and more industries are finding^ Pfizer Citric Acid and its derivatives ideal for a variexy of processes far-removed from the "kitchen." Take metal finishing for example. Because it r e moves oxide films with a minimum loss of virgin metal, you'll find Citric Acid used in polishing a n d cleaning processes. Di Ammonium CiUrate is finding increasing use in the removal of iron «ttntaminatioai from stainless steel and rust scale front, iron surfaces. Because it forms water soluble complexes w i t h metallic ions such as iron and aluminum, Pfizer Citric Acid serves as an excellent sequestering agent ixi processes where metals precipitating o u t of solution cause trouble...industrial water treatment, leather tanning, edible oil production, 2,4J) formulations. Since it contains one hydroxyl and xhree carboxyl groups, Citric Acid as an intermediate Per organic synthesis offers many interesting possibilities. And, esters of Citric Acid·..several of them marketed commercially by Pfizer·..offer the plastics industry non-toxdc plasticizers with a range of desirable characteristics. These varied applications may suggest mild, versatile citric as an acid or intermediate ian your process* ing. For additional information, writer
\lmMb is the Word for
CITRIC ACID Check These Industrial Uses
CHAS. PFIZER & CO., INC. 630 Flushing Ave., Brooklyn 6, N£~Y. Branch Offices: Chicago, III.; San Francisco, Calif.; V e r n o n , Cali-f.; Atlanta, G o .
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^ ^J*
Manufacturing
V O L U M E
3 1,
NO.
22
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Chemists for Over 100 Years
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»
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JUNE
1,
1953
23-41
