34 A
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.
