OUTSIDE INFORMATION
ΗAnOVIA high-intensity mercury vapor arc lamps for photochemistry
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Hanovia's experience in ultraviolet and quartz products over the past 50 years is responsible for a com plete line of high-intensity mercury vapor arc lamps and accessories for photochemical work on an experi mental or commercial basis. Ultraviolet radiation and near-visi ble violet and blue have already in duced a great many photo-reactions, including halogenations, oxidations, hydrogénations, polymerizations, isomerizations, nitrogen and iron reduction, and decompositions. All have been induced without hazard to personnel or damage to equipment, thanks to a completely automatic system of protective devices developed by Hanovia.
INSIDE INFORMATION
insulation
bath media
Photochemical systems by Hanovia include sturdily-built immersion wells, lamps and accessories, and have been designed to fit readily with standard laboratory apparatus. The following is a partial list of lamps that are fully tested and available: Lamp Model
Watts
Arc Length In. 1.2
608A
90-110
100
654A
115-130
200
1.9
679A
125-140
450
3.7
673A
140-150
550
4.5
•
150
700
7.5
189AJ
285
1200
12.0
78A
550
2000
21.0
47A
925
3450
48.0
59A
1000
4500
58.0
77A
960
4500
42.0
57A
1260
5000
46.5
40B
1700
7500
59.0
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ΗAnOVIA L A M P
D I V I S I O N
100 CHESTNUT STREET · NEWARK 5, NEW JERSEY Circle No. 45 on Readers' Service Card 64 A
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ANALYTICAL CHEMISTRY
Pilot Plant and Commercial Scale
For further information on complete systems for photochemical reactions of all types, write today.
674A
Laboratory Scale
Volts
GENERAL INFORMATION T h e T e c a m Fluidised Sand B a t h does a n y t h i n g an oil b a t h c a n do, b u t m u c h better. In effect, it is a c l e a n , non-volatile, n o n - f l a m m a b l e l i q u i d b a t h . T h e r e are t h r e e m o d e l s , each w i t h a m a x i m u m op e r a t i n g t e m p e r a t u r e of 350°C. T h e t e m p e r a t u r e u n i f o r m i t y is 1°C. T h e d i a m e t e r of t h e b a t h is either 7" or 9" a n d t h e s m a l l b a t h will t a k e f l a s k s of up t o 2 litres c a p a c i t y . T h e b a t h has two f u r t h e r a d v a n t a g e s : rapid heat t r a n s f e r , a n d great s a f e t y , . a n d as s u c h , is e x t r e m e l y u s e f u l in rapid distilla t i o n a t closely c o n t r o l l e d t e m p e r a t u r e s , as well as for p h y s i c a l t e s t s a t high t e m p e r a t u r e s . Write us for details, and the n a m e of your local supplier.
Techne( Princeton) Ltd., # 661, Brunswick Pike, Princeton, New Jersey, ^ a r e a code 609,921- 2817 Circle No. 84 on Readers' Service Card
