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(JJRAPURES UNtSURAJMCE j^SAINST THE IMPURITIES OR
UNCEFTTAIlSmES THAT CANJBOmRDlZE VDURWORK. The ULTREX concept 1. To provide the purest products available for the most demanding endeavors. 2. To provide maximum product definition. In other words: to provide insurance against the impurities or uncertainties that can jeopardize your work.
The ULTREX line Nearly 100 of the finest ultrapure reagents and chemicals available anywhere in the world. Every product is accompanied by a detailed Certificate of Analysis of the actual lot supplied. Take the ULTREX Nitric Acid label, for example: H N 0 3 assay, residue after ignition, specific gravity, non-metallic impurities (6), metallic impurities (23), plus a note re measurement techniques. In terms of spectrochemically detectable impurities, ULTREX products are typically 99.995 to 99.9999 pure. And the extremely low content of all impurities (often at the parts per billion level) satisfies the most rigid use requirements.
A note to those now considering uitrapures Ultrapures are not inexpensive. But
where appropriate, they can be your best investment. Whenever your requirements for purity and product definition are stringent, ULTREX products can indeed insure against loss of time, effort, and other expenses. Consider ULTREX when you just can't afford to gamble with impurities or uncertainties.
A note to those who do their own purification ULTREX products are made with the latest in advanced equipment in Baker's brand new Class-100 clean room installation in Winchester, Va. The ULTREX analysis, an extensive proof of purity, is performed by Ph.D. analytical chemists in Baker's research laboratories. The actual lot analysis for a typical ULTREX product takes three days, while nearly 40 manhours are required for products such as sodium chloride. When the analysis is complete Baker's Director of Research verifies the work and signs the certificate. This certificate is supplied with each package of that ULTREX product. Consider letting us supply your needs. We may well save you money. We know we'll save you time.
For more information See pages 145 to 180 in our Catalogs CIRCLE 19 O N READER SERVICE CARD
750/760 or write for our 36 page ULTREX brochure. A n d if you find that w e now don't supply an ultrapure you need, let's talk.
Finally, there's Super Service If your Baker distributor is out of stock on ultrapures that you need now, he can call a Baker Super Service Center and, if he calls by 3:30 p.m. our time, your order will go out directly to you in most cases on the very next business day. That's Baker Super Service.
J.T.Baker: "use-matched" products a n d . . . Super Service.
J.T. Baker ®
CHEMICALS J. T. Baker Chemical Company Phillipsburg, New Jersey 08865 201/859-5411
