Vol. 2, No. 2
Smart Blocs™

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Aldrich Jacketed Friedrichs Coil Condensers

The molded spiral condensing tube around the inner coil creates additional surface area for improved efficiency. 54mm O.D.   Overall H (cm) S.T. 24/40 joints Cat. No. S.T. 29/32 joints Cat. No. 26 Z51,723-2 Z51,724-0 41 Z51,725-9 Z51,726-7

Aldrich Triple-Jacket Coil Condensers

Excellent for Lower Boiling Solvents Features: Triple jacketing provides maximum cooling surface area Does not flood as readily during reflux surges Minimizes loss of volatile components Highly efficient while extremely compact   Overall H (cm) Surface area (cm2) O.d. (mm) S.T. 24/40 joints Cat. No. S.T. 29/32 joints Cat. No. 44 1,230 60 Z42,227-4 Z51,744-5

Aldrich Super Condensers

Extremely efficient condenser has a forced spiral path and a very large, water-cooled surface area. This design combines all these features into one condenser: cold-finger coiled Liebig Vigreux   Overall H (cm) Surface area (cm2) O.d. (mm) S.T. 24/40 joints Cat. No. S.T. 29/32 joints Cat. No. 32 405 42 Z22,497-9 Z51,740-2 37 510 42 Z22,498-7 Z51,741-0 41 610 42 Z22,499-5 Z51,742-9 51 820 42 Z22,500-2 Z51,743-7

Sigma-Aldrich Fine Chemicals is ready to provide a competitive bulk quote on any of our products including those listed in this publication.

• Prompt delivery of the broadest range of chemicals from stock.
• Extensive custom process development and scaleup.
• New large scale & cGMP manufacturing facilities worldwide.
• Custom packaging.
• Analytical services & regulatory support.

The emerging importance of combinatorial and high-throughput methods in chemistry has resulted in a need for specialized kits of chemicals. We are able to provide a variety of these kits by combining Aldrich's vast chemical inventory and our customized weighing process. Some of our more popular kits have included carboxylic acids, arylboronic acids, amines, and alcohols; we are now pleased to add isocyanates to this list.

Key Features Include:

• Flexibility
  • Ideal for high-throughput or combinatorial chemistry; available in vials or titerplates
• No Minimum Order
  • Service as diverse as your needs
• Reduces Waste
  • Little or no unused product to store or dispose
• Saves Time
  • Less time weighing reagents, more time doing research

For more information on this unique service please call us at 800-333-7306 (USA). You may also e-mail us at bwandler@sial.com in the USA or at smarsden@europe.sial.com in Europe.

NOW AVAILABLE: Easy-to-Order, Ready-to-Use, Preselected CombiKits™

We can create a kit tailored to your specific requirements.