BOOKS
Your U.F. Products Shape Up
Better with
NITROGEN DIVISION
CRYSTAL UREA
The Reason: Nitrogen Division C r y s t a l Urea i s t h e purest y o u c a n bu^-—yet is priced competitively.
(Carbamide]
ess is inadequate, t h e author apparently assuming that a suitable laboratory for investigation of these processes is avail able t o the worker. Also, operating procedures for this equipment would be valuable to the laboratory worker embarking on a n investigation program, and they are not mentioned specifically. T h e effect of the different variables on the operation of a two-solvent frac tionation may, however, b e deduced from tlie theoretical derivations and the curves presented i n t h e text. The reader with sufficient tenacity to wade through the mathematical treatments in the latter part of the book will emerge with a thorough knowledge of the proc ess of fractional liquid extraction. Liquid—Liquid Extraction. L . ALDERS. χ -f 206 pages. Elsevier Press, 402 L o v e i t Blvd., Houston, Tex. 1955. $5.5C. Reviewed by ϋ.. G. SCHEIBEL, York Process Equipment C o .
NEW
BOOKS
Boltzmann's Distribution Law. E. A. GUGGENHEIM. 61 pages. Interscience Publishers, Inc., 250 Fifth Ave., New York 1, N. Y. 1955. $1.50. Topics discussed in detail include ideal monatornic and diatomic gases, equipartition of kinetic energy, simple crystals, phase equilibrium of a single substance, and dielectric constant of a gas, and chemical equilibrium in a gas. Reflections of a Physicist. P . W . BRIDGIW£AN.
2nd edition.
xiv -j- 576
pages.
Y o u tturn out the best p r o d u c t possible w h e n y o u u s e purest possible C r y s t a l Urea—from N i t r o g e n Division, t h e world's largest p r o d u c e r of Crystal U r e a .
Philosophical Library, Inc., 15 East 40th St., New York, Ν. Υ. 1955. $6.00. Extension of the operational approach to problercis in other fields than physics.
A n d t h e s e r v i c e to you is t h e best t o o : Technical Service —If y o u w a n t or n e e d assistance in using C r y s t a l U r e a , c a l l on u s . , .no o b l i g a t i o n ! Y e a r s of experience give you the benefit of our research knowledge.
The National Formulary. 10th edition, xliii -}- 867 pages. American Pharma ceutical Association, 2215 Constitution Ave., N.W., Washington 7, D. C. 1955. $9.00. ' Gives monographs on drugs, chemicals, and préparations. Also includes general tests, processes, and apparatus.
Delivery—Widely s e p a r a t e d producing locations assure fast delivery wherever you are, by carlot o r trucklot. K e y w s i e l i o u s e stocks give y o u fastest possible L.C.L. delivery. A l l s h i p m e n t s are m a d e i n easy-to-use 100-lb. moisture-proof, multi-wall p a p e r bags. If you presently u s e U r e a , give yourself a production present . . . change to [Nitrogen Division Crystal U r e a ! Call or w r i t e for s a m p l e s a n d q u o t a t i o n s today!
NITROGEN DIVISION ALLIED C H E M I C A L &
DYE
CORPORATION
4 0 Rector Street, N e w York 6, Ν . Υ. H o p e w e l l , V a . · Irontort^ Ohio · Orange, Tex. ·
5212
C*EN
NOV.
28,
I95E
Omaha, N e b .
1954 Vacuum Symposium Transactions. Committee on Vacuum Techniques, ix -f- 147 pages. Committee o n Vacuum Techniques, Inc., Box 1282, Boston 9, Mass. 1955. $10. New equipment and instrumentation, methods and techniques for obtaining high vacuum technology, vacuum system applications and processes, standards, and nomenclature. Safety in Industry. D. I. MACFAKLÂNE. 71 pages. Philosophical Library, Inc., 15 East 40th St., New York, Ν . Υ. 1955. $6.0Q. Covers dangers of rotating machinery, need for guards on. presses and similar machines; control of dust and fumes; types of mod ern protective clothing; precautions against diseases; damage to the eyes and harmful radiations from x-rays and radioactive sub stances; and good lighting and flooring.
The Best Choice off Ammonia Processes
No η-Catalytic. Partial Oxidation ©^natural g a i o r f u . e l o i l s (under license by t h e Texaco Develop m e n t CorpoTcTfrory). '
Steam M e t h a n e R e f o r m i n g yjqder pr-e-s^ure u s i n g n a t u r a l gcîs, r e f i n e r y g a s
L,ow T e m p e r a t u r e R a w Gas t - S e p a r a t i o n which *epr»ialc»$ h y d r o g e n f r o m h v d r o a e n - r i c h qases.
Catalytic Partial O x i d a t i o n process w h i c h uses gase$_containing a high .percentage o f h y d r o g e n .
Each Designed for Optimum Efficiency at Different Type Locations T h e M . W . Kellogg Company offers four different processes, outlined above, for the generation and puri fication of ammonia synthesis gas. The conversion phase in all uses t h e Kellogg-developed, quench-type reactor. With these four basic plant types, potential ammonia producers can be sure of a design which gives optimum results under practically a n y local operating conditions, including power and fuel as well as feed materials. This flexibility in ammonia plant design
is the result of M. W. Kellogg's m a n y years of success ful experience in engineering petroleum refineries and petrochemical plants for major producers both in the United States a n d abroad. F o r chemical manufac turers and refiners contemplating product im provement or diversification, it is a guarantee of low initial plant cost, high productive yield, and minimum operational costs. Details of M. W. Kellogg's four basic types of ammonia plants are contained in a recent 12-page booklet, available on request.
KELLOGG
PETROCHEMICAL
PROCESSES
A N D PLANTS
CHEMICAL PROCESS D I V I S I O N T H E M . W . KELLOGG C O M P A N Y , 225 BROADWAY, MEW Y O R K 7, Ν, Υ .
The Canadian Kellogg Company, Limited, Toronto · Kellogg International Corporation, London SUBSIDIARIES OF PULLMAN INCORPOKATED
NOV.
2 8.
1955 C&EN 5 2 1 3
HK££$ffitiSS8^
CHEMICALS EXCHANGE
Available for Immediate delivery at NEW LOW PRICES.
SACCHAROL
W r i t e for Data Sheet No. 515
BETA LABORATORIES, I N C . 205 N. 3rd St. Phila. 6, I»a.
Highly Effective — L o w Cost
rgJ5ialflli«yiï*ci
For further information
-η compounds purposes
write to
A Fine
READING
fitting
DUocJotyrosine BSiodosalieylic A c i d and other lodinated Synthetics Write for im formation on p r o p erties a n d p r i c e s . I n q u i r i e s o n special syntheses invited.
R
CHOLESTEROL 4-C"
IRON SEQUESTRATION
ΙΟ DINAT ED ORGANIC
High purity for research
jL*urosj^wax€^i2its;££rnarmace^^ »9™enre;«aroraHna^^
^£-ab9 INC.
YOUR ANNOUNCEMENT of Chemicals for Sale a n d / o r W a n t e d caxi carry YOUR MESSAGE to trie r e a d e r s of the leading publication in t h e chemical process industries. Rates o n request.
A S I C ^ ^ H ΕM I C A L S
for a chemist, any scientist or a tech nical executive. It's new . . . it is a first-class scientific novelty...it is intriguing...is dynamic... holds interest indefinitely. Price $10; >roduction for this Christmas Season Îimitcd. Write for details. (.Your money hack if you duplicate the formula) CARGILLE SCIENTIFIC INC. 117 Liberty St. New York 6, N. Y\
FLUORIDES
CHEMICAL & ENGINEERING NEWS
Quantitative analysis in industrial and agricul tural materials. Specialists in low fluoride con tent samples. Results double check by two methods ( W t l lard-Winter, Morin). Write for brochure & prices.
Advertising Office 4 3 0 Park A v e n u e N e w York 2 2 , Ν . Υ .
^ ^ * "INCORPORATED • 845 .Hanno BuH'ding -«^Cleveland 15,,Ohio
Present
TENN. INDUSTRIAL & ANALYTICAL LAB. P . O . Box 7 0 0 1
Knoxville, Tenn.
Procès. Mointenance. Auxiliary Eauiement. Instruments, and Fncilifîes for Plant, and LaboratorvjinfitheyChemical / a n d r Process Industrie»
EQUIPMENT MART
TURBINE AGITATORS!
.«$£> i*5
DISTILLED
WATER
HEATER
and PROPELLERS ALL SIZES I N STOCK
With a Barnstead Distilled Water Heater you can have hot distilled water on tap ready for instant use. Water is main tained at desired temperature (90 to 212 F.) automatically by means of adjustable thermostat. Same rugged tin-copper construction as found in Barnstead Water Stills.
CLEVELAND MIXER COMPANY O . BOX 197, BEDFORD, 0 .
i TANK°METER
STOCKED BY XOUR LM SUPPLY DEALER
Rarnstead tESSm ^ C T I I I
&
FOR MEASURING TANK CONTENTS ANY DISTANCE AWAY
STERILIZER CO.
ftedfae*
19 Lanesville Terrace, Forest Hills, Boston 3 1 , Mass.
INSTRUMENT CO. '
4 3 3 PETTY AVENUE • PATERSON, N . J .
DISTILLATION PROTRUDED
Extensive data on a t m o s p h e r i c a n d v a c u u m operation
WRITE for BULLETIN 12 Fnckins sizes . 1 6 * χ . 1 6 " and . 2 4 " χ . 2 4 " A v a i l a b l e f o r immediate shipment T y p e 3 1 6 stainless steel
SCIENTIFIC
STAINLESS
STEEL and
M0NEL
DEVÉllOÊMENT CO
Pails Buckets Measures Funnels Dippers Scoops Beakers Batch Cans Stock Pots Shovels
O R D t K DIRECT — Prompt Shipinsni Hiôhest quality, durable, w f e l 1 - ^ ^ corrosion-resistant utensils for lab and plant. Buy with complete assurance^Over 30 years' serving process industries. Buy— t r y - c o m p a r e "Metalsmiths" for value WRITE FOR LATEST CATALOG-PRICE LIST
M u r m u r » η ro 5 6 7 W h i t e St.
5214
C&EN
UTENSILS
PACKING
N O V . 2 8, 1 9 5 5
Orange, N . J.
%
IÏÏSISÎ
Ccën^ll»n!s_^Enameèmâ9K
TECHNICAL SERVICES
-Il . n f i A Ï m A r » » ^
Èjr u **sm^ > \ f f u i n e y i , A ^ i n e r - r i ^ 3 r e s 5 i o n t 3 i - o e r v i c e s , - u n a ^inwosrs
triai r a a l i n e s •
MICRO-ELEMEHiTAirET A N A L Y S E S • MICRO-IKORCAJÎIC A S S A Y S • BDCRO-eSESSîCAL S E S E À R C H • TOXICOiOGICAX. INVESTIGATIONS
Robinetie Research Laboratories, Inc. industrial Research ss Consultation Technical a n d Ecor»omic Surveys =u Product Development ~ Chemical M a r k e t Research
DR. C A R L TIEEK3Œ
16 E a s t Lancaster A v e n u e , A r d i s i o r e , P a . Tel- M i d w a y 2 - 6 4 5 7
7 0 5 G e o x g e St., T e a n e c k , BT. J . T e a s e c k 7-Z7Q5
ν"*εκ°Λ&,ϊ
™
DIRECTORIES CHEMICALS E X C H A N G E ΕΟΛΠΡΜΕΝΤ MART TECTEÏNÏWÀL S E R V I C E S
Φ adMDer-tiHmMity rate»
SCHWARZKOPF
.V.ÎCROANALT Ι ÏCÂL LABORATORY Routine Analysis Within One Week ANALYSIS OF
BORO and FLUORO COMPOUNDS BY N E W M E T H O D S , A I S O O T H E R A N A L Y S E S
56-19 37 Ave., Woodside 77, N . YTELEPHONE
HAvemeyer g Z ^ l l f
LEBERCO LABORATORIES Industrial Toxicity Cosmetic Toxicity Pharmaceutical Toxicity Hormone Assays · Research Send for information concerning our services 1 2 7 H A W T H O R N E ST., ROSELLE P A R K , N . J .
EQUIPMENT (Continued
from page
5202)
• Pneumatic i n t e g r a t o r , b y Foxboro, requires n o cams for s q u a r e root extrac tion; the n e w device provides continu ous linear integration of industrial p r o c ess flows to within 1 / 2 % accuracy. I n operation, t h e integrator receives a t h r e e t o 15 p.s.i. measurement signal from a differential pressure transmitter. This signal, applied t h r o u g h a bellows, positions a force bar in relation t o a nozzle. T h e resulting b a c k pressure a t the nozzle, amplified b y an air relay, regulates a j e t of air onto t h e b l a d e s of a turbine w h e e l . A s t h e w h e e l r e volves, a weight, pivoted o n t h e w h e e l , produces a centrifugal force. This is fed hack t o t h e b a r to balance t h e m e a s u r e m e n t signal. T h e revolving turbine w h e e l is geared to a counter which totalizes t h e flow. Ε9 • Refining s e r v i c e for users of glasslined chemical equipment, is avaûable from G e n e r a l Ceramics. Glass-lined tanks, kettles, reactors, valves, a n d all other types of chemical e q u i p m e n t c a n b e relined quickly and economically. D e v e l o p m e n t of an acid a n d alkali r e sistant e n a m e l , b y Keasbey, a General Ceramics affiliate, makes it possible t o give efficient service. Ε 10
M a x i m u m s p a c e — 4 " p e r Directory p e r p u b l i c a t i o n issue laches used witlairi o n e year 208 104 52 26 13 1 Agency commission: "1 5%, days, net 30 days.
CLEANING 5 0 < mEELCURJi Ship us y e w mercury. SlWm return it iml a
cafN
&ate E>er ixach $22.00 23.00 24.00 2S5.00 26.00 27.00
mediately in îtéaryy, cleatr glass bottles, induction distilled i n glass under vacuum * A.C.S. specs. Minimum 10 pounds — slio/ïst loss in processing. —UEoBtrfy s-hlpmeni.-^ —-*—:—=^- *—— EBERSACH & SON AKN ARBOR, MtÇH.
ÏNJOW offered by creators of Sadder Standard SpccSra. O v e r 1 0 , 0 0 0 infresred spectra «svatlable for rapid detensainauons of unknowns. • Creative Sponsored Research Programs D e signed to youf ReQtsireazntsFor full icafonaaSâon wriSe or phone SADTLER RESEARCH L A B O R A T O R I E S 1 5 1 7 V i n e S u Phila. 2, Pa. LQcust 4 - Q 8 3 5 "CHIM1CAL
MÀRKIT
ABSTRACTS'
Cash discount, 2 % — 1 0
Chemical and Engineering News Advertising Department 430 Park Avenue, New York 22, Ν. Υ.
• Infrared a n a l y z e r , , b y Axler Asso ciates, is for u s e with eomjpany^ nar row o a n d infrared, ultraviolet, a n d visible filters. F o r such fields as pharmaceuticals-, plastics, rubber, chemicals, p e t r o l e u m , food, paper, a n d cosmetics, i t is n o w possible for auto matic processing to foe obtained. Spot and r a p i d analysis measurements can b e m a d e b y n o n t e c h n i c a l personnel t h r o u g h the u s e of t h e narrow b a n d filters and t h e s i m p l e dial and meter arrangement€11
g i v e s y o u a l l o f t h e Marketing I n f o r m a t i o n o f t h e C h e m i c a l Industry as.t y o u r finger t i p s w i t h l i t t l e cost—as»
