flow rates

flow rates. *Reer. U.S. Pat. Off. SPECIALLY. PROCESSED to permit an unusual degree of accuracy, Johns - Manville Celite. Analytical Filter Aid is pref...
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VOLUME

CELITE* ANALYTICAL FILTER AID for clearer

19, NO. 6

New ALUMINUM Glas-Col M a n t l e s

filtrates at faster flow rates

•Beer. U.S. Pat. Off.

PROCESSED to p e r m i t an unusual SPECIALLY degree of accuracy, J o h n s - M a n v i l l e Celite Analytical Filter Aid is preferred by leading l a b o ­ ratories for all types of analytical nitrations. Invaluable for r e m o v i n g gummy, gelatinous, flocculent or semi-colloidal precipitates, many of which are unalterable by o t h e r m e t h o d s . . . Celite Analytical Filter Aid is also used in the treatment and purification of valuable chemical solutions, biological extracts, etc. Brilliantly clear filtrates at h i g h flow rates are p r o d u c e d . T h e highest quality diatomaceous silica is p r o c ­ essed in the J - M Labora­ tory for this exacting j o b . . . further refined by acid treatment and distilled water w a s h i n g . As a re­ sult, Celite Analytical Filter Aid reaches your laboratory ready for use, insoluble and i n e r t . . . as­ suring complete purity in the finished p r o d u c t . O t h e r special C e l i t e Filter Aids for l a b o r a t o r y a n d commercial use:

Filter-Cel Laboratory Standard, for the standardi­ zation of filtration procedure. Celite 5 2 1 , specially refined for the most exacting clarification processes. For complete information, write Johns-Manville, 22 East 40th Street, N e w York 16, Ν . Υ.

A η aluminum h o u s i n g n o w protects Glas-Col Mantles without sacrificing the softness of the i n n e r lining that s u r r o u n d s the flask. A few outstanding a d v a n t a g e s of the n e w construc­ tion a r e : •

R u g g e d construction—not easily d a m ­ aged by handling.



Resilient fabric lining a n d insulation gives full protection to the flask.



Fabric next to flask h u g s the flask wall at all times, providing better h e a t trans­ fer a n d g r e a t e r efficiency.



Efficiency is constant—insulation cannot b e c o m e d i s a r r a n g e d with use.



In c a s e of a c c i d e n t a l d a m a g e to glass fabric, mantle c a n b e completely rebuilt at a substantial saving m e r e l y b y re­ t u r n i n g the metal parts.



Aluminum housing helps to protect the glass fabric from d a m a g e d u e to acci­ d e n t a l boil-over of chemicals.



Low heat capacity—mantle quickly w h e n t u r n e d off.

cools

For details regarding sizes and prices, write for our Glas-Col Bulletin.

NEW YORK LABORATORY SUPPLY CO., INC. 76-78 VARICK STREET

NEW YORK 13, Ν. Υ.