DRIERITE "THE VERSATILE DESICCANT'
For Drying SOLIDS-LIQUIDS-GASES
REGULAR DRIERITE A low cost, all-purpose drying agent, D R I E R I T E is neutral in reaction, chemically stable, constant in volume, inert except toward water, insoluble in organic liquids and refrigerants, non-disintegrating, nonwetting, non-poisonous, non-corrosive, repeatedly regenerative, and non-channeling.
INDICATING DRIERITE While possessing all of the properties of regular D R I E R I T E , INDICATING D R I E R I T E makes a clearly visible change from blue when dry to pink when exhausted. Order directly from your Laboratory Supply Dealer. Write to us for our new 100-page book
W.A. HAMMOND DRIERITE COMPANY
Measured 40 times faster The Bendix® A u t o m a t i c P o l a r i m e t e r , w i t h an a n g u l a r sensitivity of 0 . 0 0 0 2 ° arc, r e d u c e s p a t h l e n g t h s of s o l u t i o n s b e i n g m e a s u r e d to one t e n t h of t h o s e r e q u i r e d in visual i n s t r u m e n t s . M e a s u r e m e n t t i m e is c u t f r o m as m u c h as 2 0 m i n u t e s to j u s t 3 0 s e c o n d s . S a m p l e cells h a v i n g path l e n g t h s f r o m 5 m m to 2 0 m m c a n be u s e d . A n y value of a n g u l a r rotat i o n can be m e a s u r e d . All of t h i s . . . with no loss in precision or sensitivity.
no m o v i n g p a r t s . Optical rotation can be s h o w n on a variety of r e a d o u t devices i n c l u d i n g digital v o l t m e t e r s , zero-centerscale m e t e r s , s t r i p c h a r t r e c o r d e r s a n d card printers.
T h e Bendix A u t o m a t i c P o l a r i m e t e r is an electronic, self-balancing, photoelectric p o l a r i m e t e r e m p l o y i n g t h e Faraday m a g neto-optic e f f e c t . M e a s u r e m e n t s can be m a d e in n o r m a l r o o m l i g h t i n g . T h e r e a r e For complete details write: Cincinnati Division, Department L-7, Wasson Road, Cincinnati 8, Ohio.
Cincinnati Division
THE Bendix C O R P O R A T I O N
120 Dayton Avenue, Xenia, Ohio Circle No. 38 on Readers' Service Card
Circle No. 21 on Readers' Service Card VOL.
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