EDTA for choosey chelation
and heat exchange equipment has steamed up your corner, perhaps we can help clear the air—chelation with EDTA is most often the answer. Or for 'hot' contamination, cool chemists choose Merck EDTA Reagent. While somewhat excessively refined, it is an excellent decontaminant for radioactive surfaces. To improve your 'genius' rating, remember, EDTA Reagent (Merck, of course) is one of the most useful of all sequestering agents available. Should you want further information on Merck EDTA Reagent, just drop a card to the Distributive Products Department, Merck & Co., Inc., Rahway, New Jersey.
We won't guarantee that Merck's EDTA (ethylenediaminoietraacetic acid reagent to you knowledgeable folk) will win you a Nobel prize, but we do assure you that it can make certain difficult purification or separation problems seem simple—positive genius. Analytical chemists note that Merck EDTA Reagent has an unfailing boarding-house clutch for cations. EDTA broaches no interference in polarographic procedures—by choosey chelation, it snatches cobalt, nickel, lead, zinc, cadmium, aluminum, barium, or stannous and manganous ions from solution. And in selective precipitation and separation of a number of rare earths, attend to this example—a 1:1 europiumEDTA complex is not soluble in water, while a 4:3 europium-EDTA complex is completely soluble—separation simple. To the peaked pharmaceutical or organic chemist who can't count on serendipity to provide the answers on purification of pharmaceuticals or reagents, we suggest Merck's EDTA in combination with an ion exchange resin. It beats all for purification, and for separation of many compounds having almost identical chemical properties. And since we're on the topic of purification and separation, we'd like you to know that EDTA will do a clean-up job on more than just solutions. While steam is just fine as a cleaning or purifying procedure for the human species, it presents quite a problem of corrosion when in contact with metal surfaces. So if the grossly practical plant problem of scale removal from boilers
MERCK EDTA SPECS Clean, white, odorless, crystalline powder Assay: 99-101% CioHi6N208 Insoluble in sodium carbonate solution : Max. 0.005% Residue after ignition: Max. 0.20% Heavy Metals (as Pb) : Max. 0.001% Iron (as Fe) : Max. 0.005% Available in M lb. and 1 lb. bottles
Precision Tools for Accurate
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