14 C&EN
Take a close look at this section of boiler tube from our Groton plant. "Since replacing coordinated phosphate treatment with an EDTA water treating program, we've cut our boiler water treating costs b y 44%." J. R. Rowland, Utilities Manager, Chas. Pfizer & Co., Groton, Conn.
Now Pfizer offers you calculated control of feed-water hardness. Read how Pfizer's full line of chelating agents and a unique chelant selection method can help you solve your water contaminants problems more efficiently. b y changing to an EDTA system; perhaps you can save What is Calculated Control? even more. 1. The broadest line of chelating agents available Get control of your water treating problems. Citrates, Gluconates, Tartrates, Oxalates, And take advantage of Pfizer's free offer: two EDTA, HEDTA, DTPA, DEG, and NTA. calculators designed to simplify your choice of 2. Chelating agent calculators. At a glance ». chelating agents. Call your Pfizer representative you can determine which chelating agent to and mail this coupon today. use and how much is needed to sequester a given metallic ion at a given pH range. 3. Your Pfizer representative supported To simplify my selection of chelating agents, please send me: by the most advanced Technical Service • The Pfizer usage calculator which tells me available, and backed b y over 40 years of at a glance the right chelating agent to use. chelating agent manufacturing know-how. D The Pfizer quantity calculator which tells me quickly the correct amount of chelating Take a good look at your own plant and agent to use. equipment. See if sludge and scale deposi• Both. tion has (or is about to) cause expensive failNameures and down-time. See if feed-water hardness is causing costly production problems, or frequent Firmequipment cleaning. Then let your Pfizer representaStreettive show you how Pfizer's calculated control can help _St._ City— you prevent these problems. For example: when feedPosition CHEMICAL DIVISION water hardness is less than 5 ppm, EDTA or one of the Chas. Pfizer & Co., Inc., Chemical Division, CN 235 East 42nd Street, New York, N.Y. 10017 other Pfizer chelating agents may provide you with the I . _ _ — _ — — -_ _ _ -s most efficient and safest results. We cut our costs 44 %
Pfizer
C&EN 15
