Courtesy
Esso Research
& Engineering
Co.
THE IDEAL PRESS FOR MAKING KB» PELLETS FOR INFRARED SPECTROSCOPE ANALYSIS •
2 0 Ton Press
• Accurate eration
capacity
Hydraulic
alignment
in
op
• Guided moving platen •
Sturdy 3 column construction
•
Even pressure distribution for uniformly dense pellets
•
Self-contained
•
Bench mounted
•
Hand operated
• 9 " χ 9 " platen area • 2 2 " max. adjustable
vertical
opening,
A multi-purpose unit with quickly adjusted vertical opening, by handwheel, per mits many different set-ups in minimum time. Used around the world for RESEARCH, CONTROL, & TESTING. Available accessories include: Heat ing and Cooling Platens; Temp. Con trols; Auxiliary low pressure gauges; Fast air closing; Extruding units; Testing units, etc. Other capacities and sizes available. Write for Bulletin.
LOOMIS ENGINEERING & MANUFACTURING CO. 133 So. 14th St., N e w a r k 7 , N . J .
Denver Equipment Co. 1400 Seventeenth St. Denver 17, Colo. Manufactures a complete line of equip ment, including ball-rod mills, classifiers, crushers, pulverizers, agitators, flotation machines, filters, thickeners, p u m p s , and dryers. Free bulletin describes all Deco lab items. Despatch Oven Co. 619 S. E. 8th St. Minneapolis, Minn. Manufacturer of industrial ovens a n d furnaces from 100° to 1300° F . Used for laboratory test work, food testing a n d bak ing, sterilizing. Also manufacturer of spray booths a n d conveyorized equipment. Defectolab, Inc. (Affiliate of Borg-Warner) 6544 North Sheradan Road Chicago 26, III. Designs, manufactures, and distributes a complete line of nuclear counting instru m e n t s , auxiliary equipment, a n d supplies. Of particular interest to research laboratories are Detectolab "building blocks," linear amplifiers, gamma-ray spectrometers, a n d instruments for radiomedical laboratories. Harry W. Dietert Co. 9330 Roselawn Ave. Detroit 4, Mich. Moisture testers, carbon determinators, sulfur determinators, foundry sand testing equipment, a n d micro particle classifiers. Dimco-Gray Co. 210 East 6th St. Dayton 2, Ohio This company's laboratory timers meet every requirement for accurate timing in minutes and seconds. T h e y provide splitsecond interval timing with 3600 possible settings. I n t e r n a l switches operate built-in alarm for elapsed time signals. Distillation Products Industries Division of Eastman Kodak Co. Rochester 3, Ν. Υ. Eastman organic chemicals—purified organic chemicals supplied in t h e purity and quantities generally required for laboratory use. Also larger-than-laboratory a m o u n t s of rare organic chemicals. Doelcam, Division of Minneapolis-Honeywell Regulator Co. 1400 Soldiers Field Rd. Boston 35, Mass. Doelcam division designs a n d manufac tures specialized d.c. amplifier for laboratory measurements, process controls, and d a t a handling systems. Doelcam also has electri cal pressure transducers a n d a viscometer compatible with Brown I n s t r u m e n t s recorders or t h e Doelcam microreceiver, a tubeless reg ulated power supply and indicator unit. Doerr Glass Co. Boulevard and Peach St. Vineland, N. J. Manufactures t h e Diamond D Blue Line and t h e Doerr White Line of laboratory glassware. Includes pipets, burets, cylin ders, flasks, funnels, a n d special items. The Dow Chemical Co. Midland, Mich. Complete line of Versene chelating (complexing) agents for m e t a l ion control or elimination of metallic ion contamination in chemical processing and products. Allen B. Du Mont Laboratories, Inc. 760 Bloomfield Ave. Clifton, N. J. Among this company's wide range of elec tronic equipment is a complete line of m u l t i plier phototubes, cathode r a y tubes and oscillographs, material test instruments, and television equipment. E. I. du Pont de Nemours & Co., Inc. Wilmington 98, Del. D u P o n t reagent grade acids a n d a m
monium hydroxide. 5-pint bottles of rea gent sulfuric acid, reagent ammonium hydroxide, reagent glacial acetic acid, and reagent hydrochloric acid now available in single-trip bottles a n d cases, packed six bottles per carton. Reagent nitric acid available only in returnable cases. All D u P o n t 5-pint bottles are equipped for added safety with nondrip polyethylene sleeves. Also available in returnable 1-pound bottles, 6.5- a n d 13-gallon carboys. The Durock Corp. West Pawlet, Vt.
Kndurock, ideal laboratory work surface, product of 10 years' research, i m m u n e to t h e r m a l shock, impervious to practically all reagents, is uniform in texture, color, and hardness. Eastern Chemical Corp. 34 Spring St. Newark 4 , N. J .
Stocks an extensive line of fine organic chemicals including analytical and m e t a l reagents, p H and redox indicators, biochemicals, amino acids, and many unusual research compounds. Eastern Industries, Inc. 100 Skiff St. Hamden, Conn.
E a s t e r n Industries manufactures a com plete line of variable-speed stirrers and midget p u m p s for chemical, petroleum, research, product testing, a n d general laboratory use Sizes a n d capacities to meet almost all laboratory applications. Eastman Kodak Co. 3 4 3 State Street, Rochester 4 , Ν. Υ.
In addition to regular photographic films and paper, E a s t m a n K o d a k a n d its division^ Distillation Products Industries, supply several t h o u s a n d fine chemicals for use in thelaboratory, special films a n d paper, a n d spe cialized equipment. Typical examples a r e infrared filters, K o d a k Linagraph p h o t o recording paper, x-ray film. K o d a g r a p h microprint reader, neutron exposure film, K o d a k Kktron lead sulfide photoconductive cells, K o d a p a k plasticized cellulose ester sheeting. Eaton-Dikeman Co. Filtertown Mt. Holly Springs, Pa. Manufacturer of Ε & D filter papers for laboratory and industry. Circles, sheets, strips in all sizes a n d grades. Folded circles. Bibulous a n d lens paper books, Free samples upon request. Eberbach Corp. 200 East Liberty St. Ann Arbor, Mich. Produces a full line of laboratory shakers and stirrers, including t h e Power-Stir and Lab-Stir, as well as electroanalyzers. D y n a C a t h m e r c u o ' cathode a p p a r a t u s , a n d other equipment. E-C Apparatus Co. 538 Walnut Lane Swarfhmore, Pa. Countercurrent fractionator for analysis and purification of a n y soluble mixture in microgram-to-gram amount ; Electroconvector for preparation of pure proteins ; and paper starch electrophoresis a p p a r a t u s . Electric Hotpack Co., Inc. Cottman A v e . and Melrose St. Philadelphia 3 5 , Pa.
Designer a n d manufacturer of controlled t e m p e r a t u r e equipment, rooms, water baths, oil baths, ovens, bacteriological incubators, hot air sterilizers, and muffle furnaces. Special sizes to order. Enley Products, Inc. 1236 Broadway Brooklyn 2 1 , Ν. Υ.
Enley supplies low cost, highly efficient water demineralizing ion exchange units in various sizes for use in laboratories, industry,
Circle No. 52 A on Readers' Service Card, page 63 A
52 A
ANALYTICAL
CHEMISTRY
