Test Our High Purity Colorimetric Indicators • Calmagite · Hydroxy Naphthol Blue • Ferrozine®· Dithizone · SPADNS
And any of our more than 400 other Hach is maybe new to you as a supplier of analytical analytical chemicals, but we're definitely not new to analysis. For the past 28 years we've led the field in water analysis, both in chemicals and instrumentation. chemicals Now we're ready with manufacturing and technical experience to meet the needs of analysts in other disciplines. We've got a new catalog of high-quality analytical chemicals with the emphasis on purity. Everything from spectro-grade solvents to ultra-purity standards, all carefully selected and controlled to deliver accurate, consistent results. These are the chemicals and reagents we know the most about. There's colorimetric and titrimetric indicators especially for metal and anion analyses, a variety of standards and titrating solutions, plus s o m e unique products like 0.0375N Phenylarsine oxide standard solution that only Hach has to offer. You'll also find application information for the majority of p r o d u c t s and a number of thought-starting literature references. So send for our free catalog. We just may be the supplier you've been looking for. Hach Chemical Company, Fine Chemicals Division P.O. Box 907A, Ames, IA 50010 800-247-3986 toll-free
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Chemical Company We make products for analysts.
Title . Company. Address.
CIRCLE 99 O N READER SERVICE CARD City-
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ANALYTICAL CHEMISTRY, VOL. 4 8 , NO. 14, DECEMBER
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1976 ·
1165A
