ASSOCIATIONS search Laboratory, Code 6120 Wash ington 25, D. C. PETROLEUM
CHEMISTRY.
Wheeler
G.
Lovell, Ethyl Corp., 1600 West Eight Mile Rd., Detroit 20, Mich.
PHYSICAL
AND INORGANIC
CHEMISTRY.
David C. Grahame, Department of Chemistry, Amherst College, Amherst, Mass.
POLYMER
CHEMISTRY.
Joseph
Dec,
Johns-Manville Research Center, Manville, N. J.
RUBBER CHEMISTRY.
Arthur M. Neal,
1009 Overbrook Rd., Wilmington 6, Del.
WATER, SEWAGE AND SANITATION CHEM
ISTRY.
H. B. Gustafson, P. O. Box
5033, Tucson, Ariz.
Pittsburgh Analytical Conference A HE seventh annual joint conference, called the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, will "be held F^eb. 27 t o March 2 at the Hotel Williaoo Penn in Pittsburgh. The ^Exposition of Mod ern Laboratory Equipment w i l l be h e l d in conjunction with the conference, which is sponsored by the -Analytical Chemistry Group of the Pittsfcmrgh S e c tion of ACS and t h e Spectroscopy So ciety of Pittsburgh.
News Service
Authors of papers will perform a great service and promote efficiency of publicity work by sending special synopses, abstracts, or other informa tion of public interest to James Stack, Managing Editor, ACS News Service, 2 Park Ave., Room 1802, New York 16, Ν. Υ. ALDEN H. EMERY
Executive
Russell
Secretary
N. D . Coggesliall
Registration is open to all interested. Fee is $2.00, $1.00 to students. Tickets for the conference dinner (in formal) to be held Wednesday evening at 6:30 may be obtained for §55.00 e a c h at the registration desk. VVaUace R. Brode, associate director o £ the Na
New York Lectures
tional Bureau of Standards, will be the principal speaker. Tours of Mellon Institute, Greater Pittsburgh Airport, and Mt. Washing ton have been planned. An employment bureau will be con ducted. Employer representatives will list job openings and pertinent informa tion on standard forms, job candidates will make application, and the employ ment committee will assist i n mak ing contacts. A program of 187 ^^r^ ; ι papers has been scheduled. Chair man of the confer ence is R. G. Rus sell of Gulf Re search & Develop ment. Chairmanelect is Neil Gor don of Westinghouse. President of the Society for Ana H. Freiser lytical Chemists of Pittsburgh, which is the name of the ACS group, is H. Freiser of the Univer sity of Pittsburgh. President of the Spectroscopy Society is N . D . Coggeshall of Gulf Research & Development. Julia Senko of Westinghouse is chair man of the program committee.
The N e w York Section of the ACS will present a series of lectures on PROGRAM medicinal and biological chemistry for THERON JOHNS, K. K. KENDALL, JR. several weeks beginning Feb. 8. on Analytical Chemistry Direct Potentiometric Method for the DeWednesday evenings from 7 to 9 P.M. MONDAY MORNING termination of Free Fluoride Ions. Meeting place will be Union Carbide & PHILIP W. WEST, H. COLL. Direct A. D. MELAVEN, L. L. LEWIS. The Carbon Corp. building, 3 0 East 42nd Spectrophotometric Determination of Gravimetric and Spectrophoto>:metric MiSt., New York City. A list of the lec Small Amounts of Chloride. crodeterminatiun of Rhenium. tures follows: EDWIN P. PRZYBYLOWICZ, L. B. ROGERS. C. L. LUKE, MARY E. CAMI^UELL. De termination of Traces of Gallium and Coulometric Titrations with ElectrolytiFeb. 8: BERNARD B. BRODIE. Bio Indium in Germanium and Ormanium cally Generated Mercury (I and II). logical and Physiological Aspects of Dioxide. Determinations of Chloride, Bromide, and Drug Action. C. L. LUKE, MARY E. CAMPBELL. Iodide. Feb. 15: ALFRED BURGER. Ration W. J. HOLLAND, D. F. BOLTZ. A Study Photometric Determination of ipM ;·» »rë$praeK ;.215j WWREHCE-VSTR^ET .] BENVÎR 5 . €0L(JRAD0 ;
:
M. ZALL,
D. FISHER,
R. E. M C -
MICHAEL. The Determination of Copper in Diesel Fuel and Other Petroleum Prod ucts. K. E. KRESS. Absorptiometric Deter mination of Lead in Rubber Products and Compounding Materials. C.
C.
HALE,
E.
R.
QUIRAM,
R.
F.
STRINGER. Esso Lamp Method for Sulfur in Petroleum Products. 382
C&EN
J A N . 2 3. 1956
ASSOCIATIONS X-Ray Spectroscopy—Methods
cent X-Ray Spectrographic Determination of Uranium in Waters and Brines.
TUESDAY AFTERNOON
D.
H.
LENNOX.
A
Monochromatic
J. P. WRIGHT, Κ. Η. STORKS.
J. W. KEMP, G. ANDERMANN.
Refine
W. M. FLOOK, JR., D. D. FRIEL.
Se
lective Analysis for Elements Using Modi fied X-Ray Absorption Techniques. L. S. Β IRKS, E. J. BROOKS.
Dynamic
Diffusion Studies by X-Ray Spectroscopy. J. HOWER, L. C. JONES, H. D. BURN-
HAM. Analysis of Multicomponent Sys tems by X-Ray Fluorescence. M.
L.
SALMON,
J.
P.
R. C. HIRT, W. R. DOUGHMAN, J. B.
GLISCLARD. Application of X-Ray Emis sion Spectroscopy to Air-Borne Dusts in Industrial Hygiene Studies. E. R. WALTER.
Application
WEDNESDAY AFTERNOON
Deter
mination of Chromium, Nickel and Diffraction-Absorption Technique for Di Copper in Jute and Paper by X-Ray rect Quantitative X-Ray Analysis. Fluorescence Methods. ments in X-Ray Emission Techniques.
Analytical Chemistry—Uranium
of the
X-Ray Spectrograph to the Analysis of Chlorine in Resins. E. L. GUNN. Determination of Plati num in Reforming Catalysts by X-Ray Fluorescence.
O. A. NIETZEL,
M. A. D E SESA.
Polarographic Method Uranium Analysis.
R. E. STEVENS, W. H. WOOD,
GOETZ, C. A. HORR.
A
for Continuous K. G.
Machine for Prepar
ing Phosphors for the Fluorophotometric Determination of Uranium. L. R. FORTNER. Fluorimetric Deter mination of Uranium with a Beckman DU Spectrophotometer. F. N. WARD, A. P. MARRANZINO.
Determination Waters.
Field
of Uranium in Natural
BLACKLEDGE.
Rapid and Improved Mineral Analyses with Fluorescent X-Ray Spectrography. S. FINE, C. F. HENDEE.
Radioisotope
X-Ray Sources and Applications. Management Problems in Spectroscopy WEDNESDAY MORNING
Η. Ε. LUMPKIN. The Optimum Utiliza tion of Spectroscopy in Industrial Re search—From the Viewpoint of a Prac ticing Spectroscopist. N. WRIGHT. The Optimum Utilization of Spectroscopy in Industrial Research— From the Viewpoint of a Department Head. H. W. FIELD. The Optimum Utiliza tion of Spectroscopy in Industrial Re search—From the Viewpoint of a Re search Director. H. COLVIN. The Optimum Utilization of Spectroscopy in Industrial Research— From the Viewpoint of an Instrument Manufacturer. Analytical Chemistry WEDNESDAY MORNING
K. TREGO. Determination of Barium in Zirconium and in Certain Zirconium Salts. L. SILVERMAN, D . W. HAWLEY.
Colori-
metric Determination of Small Amounts of Zirconium in Thorium. D. D. D E FORD, R. S. BRAMAN.
The
Determination of Boron by Neutron Ab sorptiometry. J. F. COSGROVE, G. H. MORRISON.
Ac
tivation Analysis of Impurities in Germa nium Using Gamma Scintillation Spec trometry. C.
W.
STANLEY,
P. KRUGER.
PUFF heap big hurry for special glass" Happy with his last shipment of PYREX pe-ace pipes, this fellow has dreamed up some new uses for special apparatus — and knows where to come for it. People over in our Special Ap paratus Department are used to unusual orders. They don't waste time clucking tongues, because they've seen just about everything. lheyTi take some tortured memo ries, give them a few new twists, add a lot of skill and another piece of special apparatus will be on the way. To him, to Mars, or to you. You'll get PYREX brand glass No. 7740, too, or if you want something more special, you can get VYCOR brand No. 7900, with its higher temperature limit. For "ordinary" specialties, con sult our brand new 116-page cata log, "Custom Made Laboratory Glassware by Corning." Just send in "wampum" below. C O R N I N G GLASS WORKS CORNING, N.Y.
Deter
mination of Sr*° Activity in Waters with Ion-Exchange Concentration. M. H. FELDMAN, N. I. CARBONE, C. T.
OBERG. Analysis of Fission Products in Presence of Excess of Stainless Steel Radioactive Species. U. L. UPSON. In-Line Analysis—The Key to Chemical Process Automation. X-Ray Spectroscopy—Trace Analysis WEDNESDAY MORNING
Fluores
cent X-Ray Spectrographic Analysis of Traces of Germanium. W. L. KEHL, R. G. RUSSELL.
CORNING GLASS WORKS 68-2 Crystal Street, Corning, Ν. Υ. Please send me your new catalog CA-1; "Custom Made Laboratory Glassware by Corning."
Nome
Title..
Company-
F. BEHR. Trace Analysis with Norelco X-Ray Spectrometer. W. J. CAMPBELL, H. F. CARL.
(%t*t*f
Address ..Zone
City
State..
Fluores
JAN.
2 3.
1956 C & E N
383
ASSOCIATIONS B. W . TAYLOR. Fisher-Gulf Partitioner. J. S. W A H L B E R C , D . L. SKINNER, L. F . D. W . CARLE. Design and PerformRADER, JR. Volumetric Determination of Uranium Using Titanous Sulfate as a Re ance of tlie Beckman Gas Chromatograph. L. V. GUILD. S o m e Practical Applica ducing Agent. tions of Gas Chromatography. G. L. B O O M AN, \ V . B. HOI.BROOK, J. E . D. H. L I C H T E N F E L S , S. A. FLECK, F . H. REIN. Coulometric Determination of Ura BUROW, X. D . COGCESHALL. Gas Parti nium ( VI ) at Controlled Potential. tion Analysis of Light Ends i n Gasolines. B. E. P A I C E , M. C. E L L I O T T , J. E . R E I N . J. R. CORBIN, V. J. COATES. The Ultraviolet Spectrophotometric Determina Qualitative a n d Quantitative Analysis of tion of Uranium. Multicomponent Mixtures by Vapor FracGas Partition Chromatography tometryWEDNESDAY AFTERNOON \V. C. PERCTVAL. Quantitative Analysis R. KEARXS, L. V. G U I L D . An Apparatus of "Freon" Fluorinated Hydrocarbons by for Analysis by Gas Chromatography Vapor Phase Chromatography. Method. D . R. L O N G , R. W . NEUZIL. Determina-
tion of 4-Methoxyphenol in 2-i-Butyl-4Methoxyphenol b y Partition Chromatography and Ultraviolet Spectroscopy. Panel Discussion a n d Open Forum on X-Ray Spectroscopy Cosponsored by ASTM Committee E-2 WEDNESDAY
AFTERNOON
Moderator. L. S. B IRKS. Panel Members. I. ADLER, H. FRIEDMAN, LIEBHAFSKY, J.
H . CARL,
M . F . HASLER, SHERMAN.
H.
A.
Infrared Instrumentation THURSDAY
MORNING
J. U. W H I T E . Effects of Resolution in Infrared Analysis. S.
S.
MITRA,
D.
Microspectroscopy Convergence.
VACUUM DRYING IS SAFER D R Y I N G
CONTINUOUS DUTY STÏRRERS
L.
WOOD.
Infrared
and t h e Effect
H . G. CONNER,
W.
M. T R I P P E B ,
D . J.
TROY. Improving t h e Performance of the Perkin-Elmer Model 2 1 Spectrophotometer. E . H. SIECLER, J R . , J. W . H U L E Y .
M o r e a n d more s a f e t y engineers a r e insisting t h a t vacuum ovens b e used for a l l non-aqueous compounds.
Utility Stirrer, with rheostat control down to a p p r o x i m a t e l y 2 5 0 r.p.m. A c o m p a c t stirrer f o r light doty applications. Induc tion t y p e motor is r a t e d for continuous duty. Full l o a d s p e e d is 1 5 5 0 r.p.m. A d justable chuck holds VA" diameter stirrer rods. A rigid extension tube facilitates mounting in a n ordinary support c l a m p ; plug-in cord is w i r e d through tube. Com plete with chuck, monel metol shaft a n d propeller. O p e r a t e s on 115 volts, 5 0 o r 6 0 cycles A . C . only; 17 watts.
N.
B. B R A Y M E R ,
N.
G.
KABUSS.
Emission Spectroscopy—General MORNINC
A. FASSEL.
Observations
on the
Spectrographic Determination Gaseous Elements in Metals. M.
J.
J.
H - 6 0 1 1 5 Utility Stirrer, with rheostat Each . . . . $ 2 8 . 5 0 Utility Stirrer, without rheostat, b u t otherwise identical to H-6011 5 Each . . . . $21.50
B.
F.
CONNER,
N.
F.
SCRIBNER.
High
SHIMP.
Spectro-
RUDOLPH.
A
CHROMATOGRAPHIC CATALOG Write for your free copy Lists latest equipment for chromatographic and elec trophoresis work, including fraction collectors, migration chambers, densitometers, spectrophotometers, etc.
Spectrochemical
Method for Determining Silicon in Silicone Resin Solutions. A. C. BOWEN. Emission Spectrographic Analysis of High Alloy Magnetic Materials. E.
K.
JAYCOX,
Β.
Ε.
PHESCOTT.
The
Spectrochemical Analysis of Cathode Nic kel Alloys b y a Graphite to Metal Arcing Technique. J. F. W O O D R U F F ,
HARSHAW'S NEW
T. HARRIS,
J R . , L. J.
CANODY. Spectrochemical Determination of Silver in Stainless Type Steels. J. E . PATERSON.
T h e Spectrographic
Determination of L e a d in Leaded Steels. K. T. TUREKIAN, P. W . G A S T .
A n Emis
sion Spectrographic Technique of Analy sis for Strontium in Silicate Materials. Absorption Spectroscopy—General
H-52829—Formo-Voc Vacuum Oven, $ 1 5 5 . 0 0
-,DiV,lSiQN QÉ,7HE,HARSHAW .CHEMICAL C O f ;
DARR,
graphic Analysis of Soils and Soil Clays.
VERSATILITY—Can be used as drying oven when vacuum is not required.
HARSH AW SCIENTIFIC
M.
of the
Sensitivity Spectrographic Method for the Analysis of Titanium Tetrachloride.
SAFE—Door equipped with wire mesh protec tive screen over tempered pyrex window. No electrical connections inside chamber. New type woven heating element surrounding chamber is scientifically spaced to eliminate hot spots, and insure uniform chamber temperature. Self seoling neoprene door gasket.
SPECIFICATIONS Weight—on/y 37 lbs. Range, room t o 125° C. Overall dimensions: 12 r W x l 5 ' H x l 7 * D . Includes vacuum Working" chamber: gauge, 1 shelf, 2 8-' W χ 7" Η χ 15* D. valves, thermometer, (Approx.) neon pilot light, cord Working chamber area: and plug. Order now 740 cubic inches — All for quick delivery. Usable.
The
Electronics of the Beckman Model IR-4 Infrared Spectrometer.
THURSDAY
CONVENIENT DESIGN — A l l controls on front panel, including dial type adjustable thermostat. Light weight aluminum door swings up and out of way. Sloping front permits easy viewing. 3 # diameter easy to r e a d vacuum gauge and 2 valves (one for vacuum and one for d r y air or gas flushing) conveniently positioned.
De-
sign and Performance of a Fore PrismGrating Infrared Spectrometer. W . M. W A R D . Design and Performance of the Beckman Model IR-4 Infrared Spectrometer.
V.
The Formo-Voc Vacuum Oven is designed for safe t y and efficiency, and provides these features: RUGGED CONSTRUCTION—Vacuum chamber made of special l/e " welded steel with white in terior, surrounded by 2' glass wool insulation.
of
Cle, f 1945* «nfrared Spectrophotometer. C.
L.
GEMMILL.
Modification
of
the
Beckman DK-1 Spectrophotometer for Use as a Recording Spectrofluorometer. T.
A.
CHUBB,
H.
FRIEDMAN.
Ultra
violet Water Vapor Measurement. D. E. DUGGAN, R. L. B O W M A N , Β. Β. BRODIE, S. U D E N F R I E N D . Applications of
Spectrophotofluorometry to the Analysis of Organic Compounds in Solution. W.
E.
OHNESORGE,
L.
Fluorimetric Determination Bi and B 2 in Mixtures.
B.
ROGERS.
of Vitamins
Spectroscopy—Instrumentation THURSDAY AFTERNOON
R.
BARTEL,
A.
GOLDBLATT.
Direct
Reading Analysis of Alloy Cast Iron. R. H. BLACK, P. E. LEMDEUX.
Direct
Reading Spectrochemical Analysis of N o n metallics Used in the Aluminum Industry. L.
O. EIKREM, J. S. F I P P H E N .
Direct
Reading Spectrochemical Analysis of Stain less Steel. L. E . O W E N . Narrow Wavelength I n terval Direct Reading Spectrometer. A. M. LAING, D . D . H A R M O N .
Innova
tions and Performance of the Fisher Spectro Analyzer. R. J. MELTZER, J. KELLER.
Improving
the Sensitivity of High Dispersion Spec trographs. A.
T.
MEYERS,
F.
C.
CANNEY,
P.
J.
DUNTON. Spectrographic Analysis in a TrucK-rnountcvA Laboratory ior U s e iii Geochemical Exploration. A Preliminary Report. Separation Techniques and Group Type Analyses F. W . MELPOLDER.
H.
HUGHES, E .
SATER.
FRIDAY MORNING
H. T. G R E N D O N , H. L. LOVELL.
Group
Ultraviolet Spectroscopy, Chiefly Instrumentation THURSDAY AFTERNOON Modi
fication of a Beckman Model D U Quartz Spectrophotometer for Measurements t o 192 Millimicrons. C.
STRONG
III,
E.
S
O'CONNOR.
The Precision, Accuracy, and Sensitivity of Quantitative Measurements with t h e Beckman D U Spectrophotometer. B.
D.
HENDERSON.
The
W. B. M A S O N , J. SALVATORE.
Spurious
Infrared Bands D u e to Grinding Small Amounts of KBr in Mortars of Various Composition. H. P. SCHWARZ, R. CHTLDS, L. D R I E S BACH, S. V. MASTRANGELO. Adaptation
on the KBr Disk Technique for Infrared Microanalysis. J. FUGGER. Micro Method for t h e I n frared Identification of Carbohydrates in the Solid State. R. S. M C D O N A L D . Study of the Inter action Between Surface O H Groups and Adsorbed Nonpolar Molecules by Infra red Spectrometry. E. H. ROGERS, J. N. SHOOLERY.
Definition
Spectro
scopic Studies on Dyes. II. T h e Struc ture of N,N'-Dimethyl-indigo. M. A. PHILLIPS, R. D .
HINKEL.
The
Determination of 2,6-Di-Tertiary-Butylp-Cresol in Edible Fats b y Ultraviolet Spectrophotometry. O. E . HARRIS, H. FREISER.
The Ab
sorption Spectra of 2-(o-Hydroxyphenyl) Benzothiazoline and Some of Its Metal Chelates. C. W . WADELIN. Ultraviolet Deter mination of Phenolic Antioxidants in Rubber. H. BASTRON, K. J.
MURATA.
A
New
Optical Test for Minerals with Narrow Ab sorption Bands in the Visible Region. J. W . MILLER, D . D . D E F O R D .
Spec-
trophotometric Titration of Olefins with Electrically Generated Bromine.
Quanri-
Magnetic Resonance Spectroscopy. R. C. LORD. A Nuclear Magnetic Res onance Study of t h e Effect of Deuterium on a Keto-Enol Equilibrium.
Mass Spectrometry and Infrared Spectroscopy FRIDAY AFTERNOON H. SIEGEL, D . O. SCKISSLER.
of
Ketones ( Continued
W.
D.
PERKINS.
Spectrographic
De
termination of Trace Metals in Petroleum Fractions. K. K U M L E R , T. P . SCHREIBER.
A Rapid
Method for the Spectrochemical Analysis of Lead in Blood. C.
F E L D M A N , J. Y. ELLENBURG.
The
Chemical Separation of Rare Earths from Thorium Prior to Spectrographic Analysis.
by
Identifica
Catalytic
Wolff-
on page 410)
k CALENDAR O F E V E N T S American Chemical Society 129th National Meeting, Dallas, Tex., April 8 - 1 3 , 1956. 130th National Meeting, Atlantic City, N. J., Sept. 1 6 - 2 1 , 1956. 131st National Meeting, Miami, Fla., April 7 - 1 2 , 1957.
k A C S LOCAL S E C T I O N S PLACE
Central Ohio Valley, Marshall College, Huntington, W. Va.
L. W . TAYLOR, L. C. JONES, JR.
Sample
FRTOAY MORNING
Type Analyses for Oxygenated Materials by Infrared Absorption. W. PRIESTLEY, JR. Compound Type Analysis by Mass Spectrometry. J. M. VANDENBELT. Organic Group Analysis with Ultraviolet Spectroscopy. Ε. Β. BAKER. The Present Status of High Resolution NMR Spectroscopy i n Analysis.
F.
C. F E L D M A N , M. K. W I T T E L S .
Emission Spectroscopy—General
T h e Application of
L.
Recent Im
Transport and Temperature Studies in Porous Cup Discharges. Β. Ν . NELSON. Statistical Evaluation of Spectrographic Methods.
tion
Separation Techniques to Mixtures for Molecular Spectroscopic Analyses. S. A. FRANCIS. Infrared Determina tion of Hydrocarbon Structural Groups. R.
R. B. D U L L , N . SIMPSON.
provements in Uniformity of Spectroscopic Electrodes.
J. W E I N S T E I N , G. M. W Y M A N .
Design and Performance of a Simplified Die for the Preparation of Potassium Bro mide Windows.
THURSDAY AFTERNOON
An Aid for
Ultraviolet Spectroscopy
KBr Pellet Technique and Nuclear Magnetic Resonance FRIDAY MORNING
Emission
W. K. BAER, E . S. HODGE.
Visual Comparison in Spectrographic Analysis. M. SLAVIN. Use of Commercial Sheet Film in Spectrochemical Analysis.
Eastern North Carolina, Flanagan Bldg., Room 317, East Caro lina College, Greenville, N. C. Indiana, LaRue's, Indianapolis ( Noon luncheon ) Indiana, LaRue's, Indianapolis (50th Anniversary meeting and Ladies' Night) Minnesota, Chemistry Bldg., Uni versity of Minnesota, Minne apolis North Jersey, Seton Hall Univer sity, South Orange, N. J. Southern California, Rodger Young Auditorium, Los An geles
SPEAKER
SUBJECT
Feb. 2
David Z. Robinson
Differential Analysis with Double Beam Infrared Spectrophotom eters Chemical Spectroscopy
Feb. 2
Richard C. Lord, Jr.
Jan. 3 1
Dorothy Hubbard
Feb. 2
Llewellyn Heard
Feb. 2
Herbert E . Carter
DATE
Bacterial Metabolism of Dramines
Meeting-in-M iniature Some Radical-Oxygen Reactions
Jan. 3 0 Feb. 3
Fire Magic
W . Albert Noyes, Jr.
and
JAN.
2 3,
1956 C & E N
385
CHEMICALS EXCHANGE
ASSOCIATIONS (Continued
from page
385)
Heavy a n d Fine Cehmicals; N a t u r a l a n d Synthetic Resins; Gums, W a x e s , Oils; Pharmaceuticals; Solvents; Dyes, Pigments M o n o m e r s for Polymer Research
a m i n o acids synthesized by DOW
LABORATORIES
7 essential i-lsoleucine with D-Alloisoleucino Di-Leucine Di-Lysine Monohydrochloride '.-Methionine JL-Phenylalanine ot-Tryptophan Di-Valine
13 nonessential N-Acefyl-Di-Alanine Ν -Acetyl- ot- Leucine •N-Acetyl-oi-Methionine N-Acefyl-Di-Tryptophan N-Acetyl-Di- Valine OL-Alanina OL-2-Aminobutyric Acid 2-Methylalanine oi-3-{3, 4-Dihydroxyphenyl) alanine •Glycine. N.F. Di-Norvaline oi-Serine oi-Tyro$ine 'available in commercial quantities. For information, write THf oow CHEMICAL COMPANY, Midland, Michigan, Dept. PH 889A. you can depend on
DOW
CHEMICALS
— — — —
Substituted Ethylenimines
Kishner Reduction of Mass Spectrometry. G.
P.
HAPP,
'© CLEVELAND MIXER ^ COMPANY P.O.BOX 197, BEDFORD, O .
for Using Impure Compounds as Cali bration Standards for Quantitative Infra red Spectrophotometry.
FOR MEASURING TANK CONTENTS ANY DISTANCE AWAY
ANY ' LIQUID)
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of Eight
R. S. MUNGER, E . L. G A V I N .
Fcr further information and prices, write: THE
D.
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Analysis
M o n o m e r - P o l y m e r Laboratories 5 1 1 Lancaster St., Leominster, M a s s .
YOUR ANNOUNCEMENT of Chemicals for Sale and/or Wanted can carry YOUR MESSAGE to the readers of the leading publication in the chemical process indus tries. Rates on request. CHEMICAL & ENGINEERING NEWS Advertising Office: 430 Park Avenue New York 2 2 , Ν . Ύ.
of
Absorption
J. H . JONES, M. A. H A L L .
BORDEN C O M P A N Y Chemical Division
Near Infra
red Determination of H s O in DsO. A p plication to the Determination of Water of Crystallization and Readily Exchange able Hydrogens in Organic and Inorganic Compounds. Flame Photometry and Others FRIDAY AFTERNOON R. E . THIERS,
B. L. V A L L É E .
Storage
of Very Dilute Solutions of Metals. E. S. HODCE.
Some
Anion
Effects in Flame Photometry. J. A . D E A N , J. H. L A D Y .
DISTILLATION PROTRUDED
The
High
A Method
Liquid Chlorine by Infrared Spectroscopy.
PACKING
Extensive d a t a o n atmospheric a n d v a c u u m operation
WRITE for BULLETIN 12 Packing sizes . 1 6 " χ . 1 6 " a n d . 2 4 " χ . 2 4 "
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The Borden Company Chemical Division as a service to the polymerization industry and polymer research offers in reagent quantities many other sepcialty monomers, catalysts, accelerators and cross-linking agents.
R. A . JEWELL, T . J. A L L E N .
red and Mass Spectra Purity Nitroparamns.
Process Maintenance, Auxiliary Equipment, Instruments, a n d Facilities for Plant and Laboratory in the Chemical and Process Industries
ALL SIZES IN STOCK
H.
COOPER. Mass Spectrometric Determina tion of Volatile Solvents in Industrial Waste Water.
EAIIIDllCàlT IIADT CUUinviCPI Ι ΙΊΛ19Μ
and PROPELLERS
L>. VV. STEWART,
N-Butylethylenimine 2,2-Dimethylethylenimine N-Benzyiethylenimine 2-Ethylethylenimine N-Ethylethylenimine N-Phenylcthylcnimine 2-Methylethylenimine N-Methylethylenimine
B. M I L A N ,
TURBINE AGITATORS
Hydrazones and
A v a i l a b l e f o r i m m e d i a t e shipment Tppe 3 1 6 stainless steel
Flame Sppc-
trophotometric Determination in Ferrous Alloys. H.
WATANABE,
K.
K.
of Copper
KENDALL,
JR.
Flame Spectrophotometry of Zinc. G. E . MARSH. Flame Photometric D e termination of Chlorides. E. G. WASILKO. T h e Flame Photometric Determination of Lead and Copper in Plating Bath Solutions. S. J. SAGE. A N e w Calcium Filter for Flame Photometry. F. B REÇU. A N e w Multichannel F l a m e Spectrometer.
SCIENTIFIC DEVELOPMENT CO. INSTRUMENT CO. * 483 GETTY AVENUE. PATERSON, N. J.
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ASCO
GLANTJ
that gives you MAXIMUM USABLE VISION
For Rotary Seals Thermometer Ports Entry Tubes
A C M E PROTECTION EQUIP. CO. 1217 Kalamazoo Street, South Haven, Mich. C&EN
BOX 795
. .«he Gas Mask
Write for Bulletins 541 and 561
410
STATE COLLEGE. PA. "
J A N . 2 3. 1 9 5 6
• Teflon® Teflon® construction · Adjustable for C &.^ ^ 1 C 6mm and 10mm shafts and glass tubing ) • Vacuum tight to 10·* mm Hg. · Inner and outer " 0 " ring seals · Operating temperatures as high as 200°C.
11ÊÂ.
Arthur F. Smith Co. · Rochester 3, Ν. Υ.
EQUIPMENT (Continued
from page
402)
shielded y e t portable. Company says it finds its major u s e i n m e d i c a l - p h y s i c s laboratories. Unit permits one-man handling b y t h e simple expedient of c o n s t r u c t i n g t h e s h i e l d as a series o f 2-in. high interlocking cylindrical s e c t i o n s or rings, w e i g h i n g less t h a n 3 0 l b . each. Ε4 pV T a n t a l u m corrosion t e s t k i t , b y F a n -
