ANALYTICAL
30 A
CHEMISTRY
Announcing a new American Chemical Society Monograph .
-„, . , ^"«Όί information on bas,c perform.,», e W l , r ô « „
Performance of Lubritaiing Oils
wifh up-to-date HifoMnafiM^'»'.-'->
PERFORMANCE OF LUBRICATING OILS
. . . a direct-reading, photoelectric instrument with photographic feature ...for the analysis of many solutions, both organic and inorganic
As pioneers in the field of direct-reading spectroscopy, ARL now offers the Model 9000 Raman Quantometer for research and production control. The new ARL Raman equipment not only supplements infra-red instruments but can provide many important analyses difficult or im possible to obtain by infra-red or other means. The ARL Raman Quantometer is the first commercially available instru ment providing quantitative graphic rec ords of Raman spectra. Raman spectra have, as one of their im p o r t a n t advantages, simplicity, particu larly as compared to infra-red spectra. By their very n a t u r e they do not require ex tensive computation for the analysis of mixtures. Thus complex calculating equip ment is not required. Α Τ Ι Ο Ν
UN
by H . H . Zuidema Shell O i l Company Research Laboratory, Wood River, Illinois This important new book, amply supplied w i t h charts, tables and illustrations, summarizes and evaluates the wealth of data on the performance characteristics of lubricating oils under various conditions. Here you'll find discussions not only of general lubrication requirements, but entire chapters devoted to the lubrication process, flow characteristics, sludge and lacquer deposition, em unification and foamins and other important topics. In addition, a special chapter points out the effects of each step in the manufacturing process upon the performance characteristics of the final product. A C S Monograph #113 1952 250 pages, illustrated $5.00
NEW rein•hold
THE PHYSICAL CHEMISTRY OF LUBRICATING OILS by A . Bondi, Shell Development Co. Presents the latest ideas on the theory of lubricating oils and the physical chemical principles underlying their
Also available is a complete, new helical lamp and source unit especially designed for the excitation of Raman spectra. These units can be adapted for use with other equipment as well.
action.
Write today for complete information on the ARL. Model 9100 Raman Spectrograph and Model 9000 Raman Quantometer.
by Carl W. Georgi, Technical Director, Research Laboratories, Quaker State O i l Co. Describes in great detail the methods of testing and evaluating performance characteristics of motor oils. 1950 500 pages, illustrated $9.50
THE COMPLETE ARL LINE ALSO INCLUDES 1.5 A N D 2-METER SPECTRO GRAPHS, QUANTOMETERS, SOURCE UNITS A N D RELATED ACCESSORIES.
1951
450 pages
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MOTOR OILS AND ENGINE LUBRICATION
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