ANALYTICAL
CHEMISTRY
Recent developments in titrimetry were featured at summer symposium sponsored by the Division of Analytical Chemistry and held at University of Minnesota. H. A. Laitinen (left), University of Illinois was chairman of session on new adjuncts to titration at which I. M. Kolthoff, University of Minnesota,
Research on Nitrogen T h e American Petroleum I n s t i t u t e has begun a new research project aimed a t developing as m u c h information as possible on types, identities, and a m o u n t s of nitrogen compounds in crude oil. T h e project is to be k n o w n as Research Project 52—Nitrogen Con stituents in Petroleum. F u n d a m e n t a l studies on separation a n d synthesis will b e carried on a t t h e University of K a n s a s under t h e direc tion of C. A. VanderWerf; sample preparation, properties, a n d segregation, a t t h e U . S. B u r e a u of Mines, Laramie, Wyoming, u n d e r t h e direction of J. S. Bail; and t h e r m o d y n a m i c studies a t t h e U. S. B u r e a u of Mines, Bartlesville, Okla., u n d e r t h e direction of G u y W a d dington. T h e Project Advisory C o m m i t t e e of t h e institute, which will assist t h e direc tors of t h e investigations, is m a d e u p of G. R. Lake, Union Oil Co. of California, Brea, Calif., c h a i r m a n ; H a r r y Levin, T h e Texas Co., Beacon, Ν . Υ . ; A. P . Lien, S t a n d a r d Oil Co. (Indiana), Whit ing, Ind. ; F . P . Richter, SoconyV a c u u m Laboratories, Paulsboro, N . J.; and C. K . Viland, Tide W a t e r Associ a t e d Oil Co., Associated, Calif. T h e initial investigation will determine t h e nitrogen compounds in a Wilmington, Calif., crude oil. I n order to facilitate t h e acquisition of spectra d a t a of n i t r o gen compounds, a program of i n d u s t r y cooperation is to be established.
Infrared Spectroscopy Institute Fisk University is sponsoring its Fifth A n n u a l Infrared Spectroscopy I n s t i t u t e during t h e week of A u g u s t 30 VOLUME
2 6 , N O . 7, J U L Y
1954
•
JULY
1954
•
Ν E W S
suggested a clarification of terms used to differentiate point detection was needed. Right. P. J. Elving (left), versity of Michigan, program chairman, and D. N. Hume, discuss advantages in photometric determination of points
to September 3, with special emphasis on the application of infrared a n d R a m a n spectroscopy to problems of indus trial research. Morning sessions will be devoted to introductory lectures, evenings t o lec tures on more advanced topics, a n d afternoons to laboratory work. T h e faculty will include Walter Brown, T V A Research Laboratories, Wilson D a m , Ala. ; I v a r Cooke, University of Geneva, Switzerland, now a t Fisk; Nelson Fuson, Fisk University; E r n s t A. Jones, \ r anclerbilt University, Wilbur K a y e , Tennessee E a s t m a n Corp. R e search Laboratory, Kingsport, T e n n . ; a n d J a m e s R. Lawson, Tennessee A and I S t a t e University. F u r t h e r information m a y be obtained from Nelson Fuson, Infrared Spectros copy I n s t i t u t e , Fisk University, N a s h ville, T e n n .
Symposium on Fining of Glass T h e Union Scientifique Continentale du Verre has planned an international symposium on the fining of glass, to be held in Paris in J u n e 1955. F u r t h e r de tails are available from the secretary of t h e union, H . Vandeeapelle, 24 R u e Dourlet, Charleroi, Belgium.
Light a n d Electron Microscopy T w o conferences scheduled for Octo ber 11 to 16 a t t h e Moraine Hotel, Highland Park, 111., will discuss new developments in light a n d electron mi croscopy. A r m o u r Research F o u n d a t i o n of the Illinois I n s t i t u t e of Technology will hold a Symposium on Light M i croscopy October 11 to 13, followed b y a Symposium on Electron Microscopy
end Uni MIT, end
sponsored b y t h e Electron Microscope Society of America. T h e meetings will be coordinated in order t o provide for an exchange of t h e latest knowledge gained in microscopy. W a l t e r C. McCrone, A r m o u r Re search Foundation, Illinois I n s t i t u t e of Technology, Chicago, 111., is chairman of the light microscopy symposium.
C a n a d i a n Association For A p p l i e d Spectroscopy On M a y 18 a group of 20 spectrographers of the T o r o n t o - H a m i l t o n area formed a discussion group k n o w n as t h e C a n a d i a n Association for Applied Spec troscopy. D u r i n g t h e 1954-55 season the association will hold a series of meetings to discuss problems in applied spectroscopy. Clyde L. Lewis, R . R . 1, Richmond Hill, Ontario, Canada, is secretary-treasurer. Organizations t h u s far represented in the group a r e : A l u m i n u m Co. of C a n a d a , Ltd., Anaconda American Brass, C a n a d a M e t a l Co., Ltd., C a n a dian Westinghouse Co., Ltd., Falconbridge Nickel Mines, Ltd., H y d r o Electric Power Commission of Ontario, Metals and Alloys, Ltd., Ontario D e p a r t m e n t of Mines, Steel Co. of C a n a d a , Ltd., and Technical Service L a b o r a tories.
Computer Conference T h e fourth a n n u a l E a s t e r n J o i n t C o m p u t e r Conference a n d Exhibition, sponsored b y the American I n s t i t u t e of Electrical Engineers, t h e I n s t i t u t e of Radio Engineers, and the Association for C o m p u t i n g Machinery, will be held in Philadelphia, December 8 to 10, on 21 A
NEWS
the theme "Design and Application of Small Digital Computers." Informa tion is available from the Eastern Joint Computer Conference, P.O. Box 7825, Philadelphia 1, Pa.
Third Salon de la Chimie The first two Salons de la Chimie were held in Paris in November 1951 and June 1953. The third will be held
ANALYST'S CALENDAR American Chemical Society. 126th Na tional Meeting, New York, Ν. Υ., September 12 to 17. Optical Society of America. Annual meeting, Los Angeles, Calif., October 14 to 16. First International Instrument Congress and Exposition. Instrument Society of America, Philadelphia, Pa., September 13 to 25. Gordon Research Conferences. New London," New Hampton, and Meriden, Ν. Η., June 14 to September 3. Sixth Annual Oak Ridge Summer Sym posium on Modern Analytical Chem istry. Oak Ridge, Tenn., August 23 to 27. Twelfth Annual Pittsburgh Diffraction Conference. Mellon Institute, Pitts burgh, Pa., November 3 to 5. Joint with American Crystallographic Asso ciation.
X-Ray Diffraction School The Second Western X-Ray Diffraction School will be held in San Francisco, Calif., August 30 to September 3, under the auspices of the North American Philips Co., Inc., Mount Vernon, Ν. Υ.
NEW BOOKS Elementary
Quantitative
Analysis.
Ralph L. Van Peursem and Homer C. lines, xiii + 377 pages. McGrawHill Book Co, 330 West 42nd St., New York, Ν. Υ., 1953. $4.50. Re viewed by DONALD DEFORD, North
western University, Evanston, 111. In writing this text the authors have divided the subject matter of elemen tary quantitative analysis into four parts: principles (158 pages), calcula tions (42 pages), experiments (131 pages), and laboratory techniques (25
HOEPPLER VISCOSIMETER
GRA
LAB
pages). Each part is discussed in a separate section. The collection of all laboratory exer cises into a single section offers many ad vantages. This section offers a selec tion of 57 different experiments, 50 of which are conventional gravimetric, titrimetric, and colorimetric determina tions, and 7 of which are physicochemical experiments illustrating the equi librium law, indicator behavior, redox potentials, etc. The directions for each experiment include a statement of the objective of the exercise, an intro duction summarizing the principles and chemical reactions involved, a concise procedure, and an equation for calculat ing the percentage or concentration of the desired constituent. In many cases the division of the sub ject matter in the remaining three sec tions seems to be arbitrary. Some laboratory techniques—e.g., the use of the analytical balance and calibration of glassware and weights—are included in the section on experiments. The chapter on the reliability of measure ments is in the section on calculations rather than the section on principles. Equilibrium calculations are discussed in the section on principles. There seems to be little, if any, advantage in the division which has been employed.
December 3 to 12, 1954, extending its program to include exhibits in four sec tions: (1) laboratory equipment, (2) chemical engineering, (3) chemical products, and (4) the plastics industry. Further information is available from the Salon de la Chimie et des Matières Plastiques, 28 rue Saint-Dominique, Paris (7), France.
PRECISION
THE ALL-PURPOSE
MODEL
VISCOSITY DIRECTLY
LABORATORY TIMER
IN CENTIPOISES
FALLING BALL
(from 0° C to 100° C) EQUALS Β χ (Sb-Sf) χ Time • 3600 Settings • Split-Second Accuracy • Automatic Switching
=
Ball Constant
Sb =
Β
Sp. gr. of ball
Sf =
Sp. gr. of fluid
• Giant 8" Dial • Portable Models • Panel Mount Models
Every Gra-Lab Universal Timer can be set for any desired time period within an unusually wide range of 3600 possible settings, (ie.—1 sec. to 60 min., 1 min. to 60 hrs., etc.). A t end of preset interval buzzer alarm sounds and external load is automatically switched on or off. Priced at 121.95 to $26.95. ELECTRIC STOP CLOCKS—GRA-LAB Micro Timert with large 8" dials are available in 1/10 second or 1/1000 minute graduations for accurate measurements of elapsed time, in laboratory or production operations. Priced at $37.50.
Contact your laboratory supply house today) . . . or write direct for complete catalog to
DIMCO-GRAY COMPANY
2 1 0 E. SIXTH STREET DAYTON 2 , OHIO
Circle number 22 A-1 on Readers' Service Card, page 39 A
22 A
T h e H o e p p l e r Viscosimeter pro vides a fast a n d accurate m e t h o d of determining the viscosity of gases, liquids, oils, plastics, syrups, vis cous tars a n d dark colored liquids. Direct reading in centipoises (or centistokes). From 0.01 t o 1,000,000 centipoises. Accuracy 0 . 1 % to 0.5%. Small sample (30cc) r e quired. Results consistent and reproducible. O r d e r direct o r from leading laboratory supply dealers. Write today for Bulletin
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Manufactured by F I S H - S C H U R M A N CORP. 72 Portman Road, New Rochelle, N . y .
Fish-Schurman Circle number 22 A-2 on Readers' Service Card, page 39 A
ANALYTICAL
CHEMISTRY
