NEW HYDROGEN PURIFIER
table-top unit separates ten cubic feet of dry, ultra-pure hydrogen per hour Wherever pure hydrogen is needed and impure hydrogen is available, t h e Model C Serfass Purifier can provide a constant, economical, trouble-free source. Presently available analytical techniques a r e not sufficiently sensitive to determine any impurities in the hydrogen separated by this new i n s t r u m e n t . I m p u r e hydrogen under p r e s s u r e is passed over a resistance-heated bundle of palladium alloy tubes. Hydrogen and deuterium pass t h r o u g h t h e tubes, b u t all other gases a r e barred. Unlike p u r e palladium, the special alloy will never become b r i t tle, needs no p u r g i n g or system evacuation. Typical feed gases for t h e purifier include impure hydrogen, forming gas, cracked ammonia, and cylinder hydrogen. The model C will s e p a r a t e fifteen cubic feet of hydrogen per hour at differential p r e s s u r e s to 100 psi with a maximum outlet p r e s s u r e of 150 psi. L a r g e r capacity u n i t s a r e available on special order. FOR C O M P L E T E F A C T S on t h e Serfass Model C Hydrogen Purifier w r i t e for Bulletin 1159. The Serfass Corporation, a s u b s i d i a r y of Milton Roy Company, 1300 E. Mermaid Lane, Philadelphia 18, Pa.
milton
Controlled Volume Pumps · Quantichem Analyzers Chemical Feed Systems · pH Instruments Circle No. 144 on Readers' Service Card ·
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ANALYTICAL CHEMISTRY
1 2, 1 3
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423
CONSOLIDATED ELECTRODYNAMICS CORP. 3 0 0 North Sierra M a d r e Villa Pasadena 1 5 , Calif.
CRESCENT M A N U F A C T U R I N G C O . 1 8 3 9 South Pulaski Rd. Chicago 2 3 , III.
Exhibiting: 21-212 Process Chromatograph, 26-312 Liquids Moisture Monitor, 26-310 Process Moisture Monitor, NEW 21-130 Mass Spectrometer. Representatives at Exhibit: Harold Wiley, Bob Enochs, E m m e t t Brownèll, Art Dean, Bill Holden, Bill Bailey, Vic Adams, Royce Howard, Lew Byers, John Scheaffer, Ed Escher. General Product Line: Develops, designs, manufactures, and sells analytical and control instruments including mass spectrometers, process refractometers, and other stream analyzers, leak detectors, and a sulfur-compound sensitive monitor called the Titrilog; data-processing instruments and systems including transducers, amplifiers, recording oscillographs, analog-to-digital converters, and magnetic tape recording systems; high vacuum equipment, including pumps, gages, valves, stills, furnaces, and coaters.
Exhibiting: No. 6000 WIG-L-BUG electric mortar & pestle for mixing and grinding small samples. Representatives at Exhibit: S. E. Sheri dan, V. E . Soucek, C. E. Sheridan. General Product Line: Manufactures electric mortar and pestle for small samples.
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COORS PORCELAIN C O . 6 0 0 Ninth St. Golden, Colo.
Exhibiting: Modern laboratory porcelain, including alumina mortars and pestles, loose plate funnels, porous bottom crucibles, alumina bucking board and muller. Representatives at Exhibit: C. S. Ryland, B. D . Landes. General Product Line: Manufactures a complete line of scientific porcelain, including porous-bottom crucibles, alumina mortar, Buchner funnels, combustion tubes, high alumina and zircon porcelain, a n d industrial ceramics. Booth:
76
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87
DISTILLATION PRODUCTS INDUSTRIES Division of Eastman Kodak Co. Rochester 3 , Ν . Υ.
Exhibiting: Organic analytical reagents and Spectro solvents for spectrophotometry and the newer Eastman organic chemicals. Representatives at Exhibit: J. T. Puess, M. Guntrum, K. Brown. General Product Line: Eastman organic chemicals—purified organic chemicals sup plied in the purity and quantities generally required for laboratory use. Also largerthan-laboratory amounts of rare organic chemicals. Booth:
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E-C APPARATUS C O . 5 3 8 Walnut Lane Swarthmore, Penna.
Exhibiting: Countercurrent fractionator, completely automatic, with 200-tube extraction train; countercurrent frac tionator, manual operation, 20-tube extraction train; electrophoresis appara tus with water-cooled pressure plates; electroconvection apparatus; new gel electrophoresis apparatus. Representatives at Exhibit: Samuel Ray mond, Robert Raymond, Charles Giles, William Kempf, Norman Hibbert. General Product Line: Apparatus for the analysis and fractionation of chemical and biological materials.
C O R N I N G GLASS W O R K S Corning, Ν . Υ ,
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Exhibiting: Complete display of Pyrex brand laboratory glassware, including new reverse taper stopcock of Teflon and new gas chromatography coil made of glass. Representatives at Exhibit: J . R. Bûcher, R. J. Mathieu, Κ. Bullard, R. A. Petty, J. W. Kopko. General Product Line: Laboratory glassware, laboratory drain lines, color filters, radia tion shielding windows, and optical glass.
THE E A T O N - D I K E M A N C O . M t . Holly Springs, Pa.
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Exhibiting: A broad line of filter paper for laboratory use. Also papers for chroma tography, electrophoresis, and specialty uses such as indicator and test purposes, bench covering for laboratories handling radioactive materials. Representatives at Exhibit: T. H . Logan, Jr., C. E . Avery, C. U. Stevens. General Product Line: Papers for all kinds of filtration, absorption, and saturation. Booth:
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COULTER INDUSTRIAL SALES C O . P. O . Box 2 2 Elmhurst, I I I .
EBERBACH CORP. P . O . Box 1 0 2 4 A n n Arbor, M i c h .
Exhibiting: Coulter counter particle size analyzer—unique electronic principle provides highly sensitive, rapid measure ment of number and size of particles, independent of factors other t h a n particle size. Representatives at Exhibit: Bob Ehret, Art Ulrich, Bob Berg, Herb Russinger. General Product Line: Coulter counter par ticle size analyzer—unique electronic prin ciple provides highly sensitive, rapid measurement of number and size of particles, independent of factors other than particle size.
Exhibiting: Dyna-Cath mercury cathode apparatus; differential thermal analysis apparatus, electroanalysis apparatus ; Roto-Tilt shaking hot plate; newly developed accessories for the Waring Blendor, and shaking and stirring appara tus for all types of laboratories. Representatives at Exhibit: R. O. Boehnke, L. W. Bittman, Robert Beuhler. General Product Line: Produces a full line of laboratory shakers and stirrers, including the Power-Stir and Lab-Stir, as well as electroanalyzers, Dyna-Cath mercury cathode apparatus, and other equipment.
Roy
CHEMICAL INSTRUMENTATION SYSTEMS
86 A
PITTSBURGH EXPOSITION
