12 A
ANALYTICAL
CHEMISTRY
RCA Scientific Instruments for Industry
Micro-second Timer
Vacuum System
Vacuum Gage Edwin
B. B r a d f o r d o f D O W
placing a specimen in the RCA Electron Microscope. The Dow Chemical Company uses three of these powerful instruments. HOW LIME BREAKS DOWN Fresh lime (Magnified 7,000 x)
Inactive lime, broken down from use (Magnified 8,000 x) Count-Rale Meier
How the RCA
electron microscope
helps
DOW CHEMICAL
Now Low-Cost Electron Microscope
with processing problems T A K E THE TROUBLE with lime, for example —an important ingredient used i n o n e of DOW's processing operations. All signs pointed t o t h e possibility that t h e activity of lime d r o p p e d off with use. Yet careful chemical tests failed t o s h o w that any significant change t o o k place. T h e n t h e RCA Electron Microscope gave the answer! Electron micrographs of lime—magnified more than 24,000 times—clearly revealed that lime particles did break down extensively into finely divided, gelatinous masses. And when the action was completed, all chemical activity ceased! Just o n e example of h o w the RCA Electron Microscope is helping DOW research solve
SCIENTIFIC
many p r o b l e m s in chemistry, metallurgy, physics, and biology. Consider the possibilities of the RCA Electron Microscope in your o w n research and production p r o g r a m . T h i s powerful instrument can produce sharp images at direct magnification from 500 t o 2 3,000 diameters— with photographic enlargements t o 100,000 diameters. Resolving p o w e r is 20 t o 100 times greater than t h e best light microscope. Depth of field is 75 t o 150 times greater than t h e best light microscope. For more information about the RCA Electron Microscope, simply write Dept. R - 9 8 , RCA Engineering Products, Camden, N e w Jersey. N o obligation, of course.
Electron Diffraction Unit
Vacuum Leak Detector
INSTRUMENTS
RADIO CORPORATION of AMERICA
RCA
E N G I N E E R I N G P R O D U C T S D E P A R T M E N T , C A M D E N , N.J. In Canada: RCA VICTOR Company Limited, Montreal
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