V O L U M E 25, NO. 4, A P R I L
1953
37 A
NEW PRODUCTS, continued capacity of 1500 pieces per hour, the other, the Statormatic, has a capacity of 600 pieces per hour. Miscellaneous sizes and shapes may be handled at one time. Washing and rinsing phases may be time-controlled by the operator. Dryers are optionally supplied. 19
TRUBORE STIRRERS ACE
with interchangeable parts for Vacuum or low positive pressures Various styles for unusual needs
Unsymmetrical Ketones
Armour and Co. has announced a newseries of high molecular weight unsymmetrical ketones. Experimental sample quantities of methyl heptadecyl ketone, methyl undecyl ketone, and methyl heptyl ketone are available. These ketones are made synthetically from fatty acids. It is anticipated that they may find useful applications as chemical intermediates, solvents, lubricants, and plasticizers. 20
*
AccuAate
*7β4& Slt&w-
average leak rate of 6.4 mm. Hg/min. (unlubricated) at 7 6 0 mm. Hg. differential pressure. For lubricated stirrers, leakage is less than 0.05 mm. for the same pressure differential
8241
8242 Fabricated
y
from
bore tubing. precision
precision
ν
Stirring rod is
ground.
The
Similar to 8241 except
ACE
improved process results in the
provided
closest of tolerances.
ard
with stand-
taper
or
ACE
:
standard spherical in-
MANUFACTURERS' LITERATURE
terchangeable
joints,
an exceptionally versatile
Azelaic Acid. A 2-page technical bulletin gives complete de.scription of azelaic acid, including tentative specification, typical characteristics, and composition data. This saturated, dibasic acid will soon be available. Emery Industries, Inc. (Bull. Ifl). 21 Hydrogénation System. An 8-page brochure on the Bamag system for hydrogénation of oils and fatty acids. Contains a flowsheet, photographs of heat exchangers and autoclaves, and a table on hydrogen consumption. General Industrial Development Corp. (Berlin NW 87). 22 Ammonium Thiocyanate. A 14-page product bulletin including properties of ammonium thiocyanate and of its aqueous solutions as well as uses and chemical reactivity of this substance. J. T. Baker Chemical Co. (Bull. 101). 23 Recorder Applications. An illustrated 12-page bulletin describes the many possible applications of a photoelectric recorder. General Electric Co. (Bull. GEA-SSSô). 24 Direct Reading Analysis. Volume 4, number 1, of Better Analysis, 12-page periodical including articles on infrared analysis of terramycin and quality control analysis at a steel and brass company. Baird Associates, Inc. 25
and
accurate
unit.
^ι^β^οΛα/^βα^ι/^ ALL bearings and rods of TRUBORE STIRRERS are in a complete range of standard
taper
fully inferchangeble, and are stocked
joints and ACE exclusive standard
interchange
able spherical joints.
and—Jiih&ud
5bUco*uUa. o*t ModeU OndeA-i 8244
8243 Provided with bulb and tubulation for feeding inert
gas
around the bearing, to bal ance pressure possibly being developed in flask.
:
Especi
ally useful for controlled at
Provided with conden ser jacket on bearing so that
unit can
cooled
during
be high
speed stirring. Can also
mosphere work.
be heated to prevent accumulation
of
nor
mally solid materials.
We OnoUe. y au To know ACE ίrubore
Stirrer—Accuracy/
Economy/ Variety
and Service.
Just ask for
BULLETIN " T S - F " Trade Mark U.S. Pat. Office
Thermometers. Six-page catalog describes over 300 different thermometers, from - 2 0 0 ° to +500° C , includes prices, and contains listing of ASTM, (Continued on page 88 A) For further information, see coupon on page 33 A
ACE GLASS VINELAND
INCORPORATED NEW JERSEY
38 A
ANALYTICAL
CHEMISTRY
LITERATURE, continued
Problems IN
... for Pressing
instrument, IPT, and gas chemist ther mometers. Brooklyn Thermometer Co. (Cat. ASS). 26
RESEARCH
Aluminum Sulfate. A 43-page booklet includes history, manufacture, proper ties, and uses of aluminum sulfate. American Cyanamid Co. 27 Acrylic Acid. Technical bulletin con tains review of literature and heretofore unpublished laboratory data on acrylic acid which is now available in trial lot quantities as a 50% solution in waterstabilized by addition of hydroquinone. American Cyanamid Co. 28
COMPLETE PROCESS EQUIPMENT from PRINT to PRODUCTION
Future Chemical Production. A 16page report on estimates of production for 1955 and 1975 of synthetic organic chemicals assembled from the five-vol ume report of the Materials Policy Com mission. R. S. Aries & Associates. 29 Galvanometer Selection. Two-page technical bulletin provides information on the selection and proper use of gal vanometers. Trans-Sonics, Inc. 30 Gammometer. Illustrated, 4-page de scription of and detailed specifications for the AH series of gammometers de signed for direct measurement of gamma ray emission. The Ohmart Corp. (Bull. 102). 31
74e CARVER LABORATORY PRESS... INDUSTRY turns to research for prod uct improvement . . . development of new product uses.. mooting require ments of fast-changing markets One of the most valuable aids to labora tory research and development is The Carver Laboratory Press.
FRED S. CARVER INC. HYDRAULIC EQUIPMENT SUMMIT, N. J.
Please mail copy of latest booklet de scribing The Carver Laboratory Press and its many uses in Industry. (No salesman will call.) NAME FIRM ADDRESS
Gas Detector. Complete details on an instrument for quick testing of the immediate atmosphere for hydrocyanic acid gas are contained in 1-page bulletin. Mine Safety Appliances Co. (Bull. 0811-1). 33 AB Metal Analyst. A comprehensive 200-page catalog of metallurgical appa ratus. Contains latest listing of cut ters, grinders, mounting presses, pol ishers, metallographs, microscopes, cam eras, testing machines, analytical appa ratus, spectrographs, furnaces, acces sories and supplies, and 250 recom mended books for the metallurgical library. Buehler, Ltd. 34
It is compact, self-contained; hand operated hydraulic unit. Carver inter changeable accessaries provide for .«•*»thousands of appli cations — wherever pressing is involved.
54 RIVER RD.,
Development Service. A 16-page booklet entitled, "Putting Ideas to Work," describes activities of this wholly owned nonprofit subsidiary of Battelle Memorial Institute. The Battelle De velopment Corp. 32
43
Specimen Mount Press. New bulletin describing AB speed press; features in clude use of preheated premolds, rapid closing, and universal application for thermosetting or thermoplastic ma terials in three sizes. Buehler, Ltd. 35 Specimen Grinders. A 6-page booklet describing grinders and surfacers deFor further information, see coupon on page 33 A
Cold, heat, high pressure, vacuum or moisture in any combination? Bowser custom engineered equip ment c a n p r o v i d e the r i g h t answer. Temperatures obtainable range from — 100° F. or colder to + 5 5 0 ° F. or more; moisture control from absolute minimum to saturation; and pressures from one micron to 5 0 0 p.s.i. and greater. In a d d i t i o n t o p r o d u c t i o n models, Bowser's experienced technicians also design and con struct laboratory size units to test process factors under con sideration, and pilot-run models to assure maximum efficiency and economy. Bowser provides complete processing equipment and engi neering.
Write for further information or ask for a field engineer.
BOWSER TECHNICAL REFRIGERATION DIVISION
BOWSER
TERRYV1LLE
·
INC. C ON Ν .
VOLUME
39 A
25, NO. 4, A P R I L 1 9 5 3
LITERATURE, continued
signed for metallurgical samples. Both belt and wheel types are offered for wet or dry grinding. Buehler Ltd. 36
GRA
THE ALL-PURPOSE LABORATORY TIMER
Bromine Carrier. Data sheets give physical and chemical properties of dibromodimethylhydantoin, a crystal line powder containing 55% bromine combined with an organic carrier. The bromine can be released under strict control to achieve a desired reaction and to minimize side reactions. McKesson & Hobbins. 37
LAB 3600 Settings Split-Second Accuracy Automatic Switching
Densitometer. A 3-page bulletin an nouncing a photoelectric densitometer designed for the evaluation of filter paper strips and sheets obtained by partition chromatography and paper electrophoresis. Photovolt Corp. (Bvll. 800). 38
Giant 0" Dial Portable Models Panel Mount Models
Labeled Compounds. Catalogs de scribe carbon labeled BL-epinephrined-bitartrate and alloxan. Tracerlab, Inc. (Cats. L7-7, L7-S). - 39
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 $21.95 to $26.95.
ELECTRIC STOP CLOCKS—GRA-LAB Micro Timers 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.
Potentiometers. Bulletin gives com plete specifications on different models of panel mounting precision decade po tentiometers and rheostats. Brown Electro-Measurement Corp. 40
Contact your laboratory supply house today! . . . or write direct for complete catalog to
DIMCO-GRAY COMPANY
Nuclides. New edition of a chart of 1300 different kinds of atoms (isotopes) and an 8-page booklet describing it. General Electric Co. 41 Apparatus. A 16-page catalog of appa ratus and equipment, featuring a com plete listing of paper partition chroma tography equipment. Also included are many other newly introduced in struments and equipment for research, development, and control laboratories. Schaar & Co. 42 Chemicals. A 16-page catalog of di verse laboratory apparatus and chemi cals available including preformed cata lysts, fluorides, synthetic optical crys tals, glycerol, and agricultural chemi cals. The Harshaw Chemical Co. 4 3 Sodium. A 20-page brochure discusses the chemical and physical properties of sodium, its availability in various forms and containers, the materials of con struction suitable for its use, and han dling and storing the material. Han dling sodium in the laboratory is dealt with in a separate section. Ethyl Corp. 44 Fatty Acid Analysis. "Eapid Com position Analysis of Commercial Stearic Acids" based on titer and iodine value tests only is detailed in 12-page tech nical bulletin. Emery Industries, Inc. (Bull. 43). 45 For further information, see coupon on page 33 A
2 1 0 E. SIXTH STREET DAYTON 2, OHIO
faster...simpler...more
expedient!
the new "EMSON" VOLUMETRIC FLASK COSTS N O MORE E. MACHLETT & SON now offers the scientific world a new "Emson" volumetric flask designed to expedite the task of precision liquid measurement. Costing no more than ordinary flasks, the "Emson" flask utilizes a clear yellow-pigmented graduation running through a Schellbachtype background. Faster, simpler determinations are achieved because the easy-to-read graduation and solution level stand out clearly on the contrasting background. A l l flasks are calibrated on the basis of the metric liter and their volumes adjusted for a temperature of 20°C. subject to the tolerances listed below. 36-155 "Emson" Flask 36-235 "Emson" Flask without Stopper with Stopper Size ml. Tolerance ml. Each Doz. Doz. Each 10 25 50 100 200 250 500 1000 2000
±0.06 0.06 0.10 0.16 0.20 0.24 0.30 0.60 1.00
$ .76 .80 .84 .90 1.10 1.15 1.45 1.75 3.00
$7.60 8.00 8.40 9.00 11.00 11.50 14.50 17.50 30.00
$1.25 1.30 1.35 1.50 1.80 1.85 2.20 2.60 4.00
f
$12.50 13.00 13.50 15.00 18.00 18.50 22.00 26.00 40.00
All Prices F.O.B. New York, N.Y.
MACHLETT Laboratory
E. MACHLETT & SON APPARATUS • SUPPLIES • CHEMICALS
2 2 0 E A S T 2.3rd
S T R E E T < Ν κ ν ν Y O R K . ΙΟ. Ν.Υ.
tram TC. 500 ml
ztrc -
