I/ΕC
N I A G A R A SECTIONAL A e r o HEAT E X C H A N G E R gives close temperature control, saves you LABOR, Power, Water •
Because the n e w design improves the heat transfer to the out-door air by e v a p o r a t i o n .
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Because n e w features keep your e q u i p m e n t w o r k i n g for l o n g life with " n e w p l a n t " e f f i c i e n c y . . . a l w a y s full capacity.
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Because y o u save 9 5 % of cooling w a t e r cost.
You get faster, more accurate cooling of industrial fluids to specified temperatures. You improve your quality of production by removing heat at the rate of input. You save labor in upkeep. W i t h full access to all interior parts and piping you see everything in easy inspections. You head off dirt accumu lation and corrosion. Casing panels are removable -without moving the coils. The coils can be cleaned from both sides. First cost is low; freight is low because of the lowest space/weight ratio; you save much labor in erection. Capacity range is 7,000,000 to 18,000,000 Btu/hr. N o other heat exchange method gives you so much saving in money and convenience. Write for Niagara Bulletin 132. Ask for the full story of how you can save expense in your plant and improve your product's quality.
N I A G A R A BLOWER COMPANY Dept. EC-4, 4 0 5 Lexington Avenue N E W Y O R K 17, Ν . Υ. Districf
Engineers
NIAGRA
in
Principal
Cities
Over 40 Years'Service in Industrial
Air Engineering
For further information, circle number 32 A on Readers' Service Card, page 129 A 32 A
INDUSTRIAL AND ENGINEERING CHEMISTRY
REPORTS
Many companies are moving south of the border because technical and sales service requirements of cus tomers there are becoming too great for agents to handle. Companies save on Mexican exchange, employ local personnel, and are accepted in to the market more readily when they own plants in Mexico. Some con cerns, fearing that new tariffs will make export of U. S. products less attractive, are hedging with Mexican production. Profit margins compare favorably with those in the U. S. and Canada, although they are somewhat lower. Mexico's rate of growth and low priced foreign competition seem to be the biggest factors holding people back. This year and the next, however, should bring an increasing number of Mexican-American partnerships— a trend that is currently popular.
I/EC
Chemistry's 4th Dimension — Radiation Many applications are in sight —now we must de velop radiation sources with higher output at lower cost EAT, pressure, and catalysts have H long been the three major means of directing and controlling chemical reactions. Now the atomic age is adding a fourth dimension—nu clear radiation. Many problems still remain unsolved, but the prom ising results obtained thus far are a good indication that radiation will be an integral part of many future chemical reactions. The variety of materials and proc esses to which radiation can be adopted seems almost endless. Ir radiated polyethylene is probably the best known, although the list of current research activities stretches
