Employment information MI M W RS of the Soviet* w h o ar f M P L V Y I . and w h o so state h e n the* request a s i t ua t ion Anted !-vMf-cJ adver t i sement *ha!i be a l lowed , w i t h o u t s h a r e r , three non-siisp'av insertions in a ca l enda r var, no t t o exceed SO w o i d s eash .45 w o r d s p lus S-vsord box address or advcmver s a i m e and address , and not more than o n e per issue I Xj.es* w o r d s c h a r t e d *t SO per i.er.t discount from the s tandard rates , no minimum i h a r ^ e This rate a p p ie\ o n ! * for s i tua t ions w a n t e d adver t i sements All o t h e r nors-displa* insert ions hv Soiictv m r m l v !ixk.ir tor posi t ions , and a!! rcon-dispU* in*ertt**ns bv Student \ f f ' i a t e s of the Sosiefv. sha:i be a^vepted *t V* per ..ent J i v m i n t from standard r a t e s f o r e a i h inse r t ion made , no m i n i m u m i h a r c e Indi -v idua ls pUviiiC s i tuat ions w a n t e d adver t isements should i r t dua t e m a setter of t r a n s m i t t a l w h e t h e r >.>r not t h e v Arc members of t he Soviet* to insure appear a rue of the advert isement in the proper iass i tuat ion

In print ir . these advert isements the S,K ,et* i u m r \ no ablic-itn>n> a* to quai i tu a t ions of prospect ive emp loyees or responsibi ' i t* of employers , nor does the Nosiet* h o c information t u ! k f r m n i the posi t ion adver t i sed , or in regard t o those see l im: employment Thivr repivin; to aniMJunveme'-ts should send .optes and not original documents very reasonable effort will be made to prevent forward nc of adver t i s ing vir^ulars I mpiovers desir ing appl ica t ions on c o m p a n y fo 'ms shou ld send dup is ate copies

T h e ACS exjxect* tha t e ach u s e r of this s ec t i on c o n s i d e r h i m s e l f m o r a l l * o b l i g a t e d t o a c k n o w l e d g e all r e p l i e s t o h i s a d v e r t i s e m e n t .

R A T E S ( p a y a b l e in a d v a n c e a c c o m p a n y i n g c o p y i n s t r u c t i o n s ) : D i s p l a y a d v e r t i s e m e n t s $ 3 5 p e r c o l u m n i n c h f s p a c e u n l i m i t e d ) . M i n i m u m d i s play s p a c e , o n e i n c h , w i t h a d v e r t i s e m e n t s acc e p t e d m m u l t i p l e s o f o n e - h a l f - i n c h u n i t s t h e r e af ter . N o a g e n c y o r c a s h d i s c o u n t s . S t a n d a r d s e t t i n g 5 0 c e n t s a w o r d , m i n i m u m c h a r g e $ 6 e a c h . I n c l u d e 5 w o r d s for b o x a d d r e s s . A d v e r t i s e m e n t s f r o m o u t s i d e t h e U.S. s h o u l d b e a c c o m p a n i e d by i n f o r m a t i o n s t a t i n g t h e N e w V o r k b a n k w h i c h w i l l i s sue u s a b a n k d r a f t at U.S. c u r r ency rate*.. T h e a d v e r t i s e m e n t w i l l b e r u n i n t h e n e a r e s t p u b l i c a t i o n d a t e f o l l o w i n g r e c e i r t o f t h e b a n k draf t . SlrSU advertisements with remittance to CUFM-ICAL AS I) I \ r , ! \ t t RISC, Si US. 4> Park A tenue. Seu York 22. S. Y.. to reach there not later than the deadline of 9. A.M. on Friday. 1? days preceding the date of pu h Itcation.

SITUATIONS OPEN

Placement Bureaus

C H E M I C A L E N G I N E E R S

'd l i b ,:>r pl

RESEARCH CHEMISTS Senior research position (PhD) or equiva-lent) open to direct projects in

Gas Discharge Polymerization Radiation Effects on Dielectrics Nuclear Batteries

Send Resume to Radiat ion Research Corporation

1114 First A v e . N e w York 21, N.Y.

RESEARCH CHEMISTS ELECTRON MICROSCOPIST

Expanding research program in the study of crystal growth requires physical chemist with Ph.D. degree , chemist with Bachelor's degree , and electron microscopist. Challenging and stimulating problems.

Location approximately one hour from New York City. Please sub-mit full rsum.

Box 1 8 - L - i l , C. & . . , E a i t o n , P a .

CHEMIST Polyester & Epoxy Resins To select material and to determine reliable methods of application for impregnating, encapsulating, potting or molding transformers and similar small electronic components, especially to withstand high temperatures. Will also evaluate solid insulations, transformer oil and resin coated magnetic wire. Requires BS degree or equivalent with several years experience.

Immediate opening with a well established leader, supplier to many of America's best known industrial organizations. It provides opportunity tor the prompt recognition afforded by a close-knit organization, as well as the desirable living conditions of the upstate New York vacationland, just a few miles from the cultural and educational center of Rochester.

Convenient interview appointment will be arranged. Please write complete details of education, experience and salary requirements, to: O. L. Angevine Ir., Vice President.

CALEDONIA Electronics & Transformer

CORPORATION CALEDONIA, N E W YORK

P H Y S I C A L ANALYTICAL

CHEMIST Excellent opportunity for young man to

join the Plastics Division of Spencer Chemical Company in a position in the Technical Department at Orange. Texas. The man we are seeking shouH have a minimum of t'iree years' industrial experience and have a Masters of Ph.D. degree in Analytical or Physical chemistry with preferably an Organic minor. Work would include the interpretation of polymer structure by infrared and other techniques and correlation with reaction variables. Some experience with wet method chemical analysis desirable. In reply, send complete rsum of experience, education, age, and salary re-quirements to:

W. H. Swope , Jr. Personne l Manager Spencer Chemica l Company 1004 Balt imore A v e n u e K a n s a s City, Missouri

No need to be tied down for lack of opportunity

Chemi ; ts

at all degree levels with one to ten experience in petrochemicals and polymers will find the key to a challenging future in laboratory research and process and product development with a research-minded company in the Chicago suburban area.

W r i t e :

STANDARD OIL COMPANY (INDIANA) T. G. Stack P.O. Box 431 H Whit ing, Indiana

SENIOR RESEARCH CHEMISTS

U n u s u a l Opportunit ies In

Organic & P h y s i c a l Research D u e To

Growth A n d Diversif icat ion Excellent opportunity with an internationally known corporation in their rapidly expand-ing central research laboratory with a staff of o^er 100. Men with PhD or equivalent and five or more years experience. Salary based on experience. Generous well-rounded fringe benefit program. Metro-politan location in Midwest.

Reply in c o m p l e t e conf idence to Box 2 0 - F - l ! , C. & . N . , Easton, P a .

LABORATORY APPARATUS SALESMEN

To cover industrial, medical, health and university laboratories for one of the largest laboratory apparatus companies in the country. Renumeration Guaranteed salary and incentive basis. No top limit. Excellent pension plan. Detroit, Houston eactd Chicago areas open. Must be willing to relocate if necessary and travel. Prefer scientific background with sales experience. Forward rsum and availa-bility for interview to

Sales M a n a g e r Aloe Sc ient i f i c 5655 K i n g s b u r y St. Loui s 12, Missouri

CHEMISTS-ENGINEERS Expansion of our Research and De-velopment program requires t he following additions to ou r Technical Staff:

RESEARCH GROUP LEADER Imagi-native Ph.D. Organic Chemist to lead and coordinate our Research Group. Some supervisory experience desirable but not necessary. RESEARCH CHEMISTS Several Ph.D. Organic Chemists for basic and applied research on preparation and modification of polymeric materials, chiefly films. Imagination and high tecnnical ability required. RESEARCH ENGINEER M.S. or PH.D. Chemical Engineer to do basic and ap-plied research and expedite transfer of projects from Research into Development. DEVELOPMENT ENGINEER B S . Ch.E. for interesting engineering to link Research to Manufacturing. "Work in-volves new products, troubleshooting and improvement of present processes and products.

These positions are with a medium sized Midwestern Chemical Com-pany supplying a basic industry. Opportunit ies for professional con-tribution and recognition a re excel-lent. Salaries a re open.

Box 36-F-2 , C. & . ., Eas ton , P a .

DEC. I. 1958 C & E N 9 3

CHAINED?

9 4 C * D E C . I, 1 9 5 8

A R C ND S Creating NEW OPENINGS NEW PROGRAMS NEW OPPORTUNITIES for Production Engineer

Materials Engineer Project Engineer

Rheologist Chemists

B.S. to Ph.D. in chemical engineering, mechanical eng inee r ing , physics, with related exper ience li your talents he in the engineering or basic sciences, a n d you would like to learn whether your professional skills have a p lace m our growth, write:

r . l u n ' t i c r I I . \fc fi*Mi-t"in. Di rec tor ' IVv lmica l !Vi>oiim*l IteeruitiiKMit

Atlantic Research Corporation Alexandr ia . \ a . KIii* 9-7500

i. II.

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C H K . M H ' A I . E X U I N F E R with a le . t m q u . n n g mind t o work on l.roa .M.. u - , . , t, { . , } . * ! I , ( . . . r , T . . , \ t . . u , U .it - : - S a . e ' ^ n c - < o M . j . n m ; - 1 k t u . u t i M I J > J ! K ! t o J , , J M - T t i - i . i - T - \ : t n J J:,, n : i T i , n vt d i e - ; t ! ^ * r -u - t u t / . ' : . . t i I.*-r*Tnn < " * l ; > r n i : B..\ 3" IM I> i . a - i - tn Tli .litt*. t ton ..t .UK.'iliii . h f s u i - t ! l : t l i r : i t u t v m Hie fiei.U ..t t . jnHanumt :, | !lkn>n :uxl v\.i rliVin-tt \ r ****; r h l\\\ t ri;:iru S i r i i > \ F E B R l \ K V H*5A A i-t.i t.t i>t\--or ,! .l*-:unal Migittt**! mg. Pe rmanen t ,,-,^, tor >outig man with d o c t o r ate !.< al eng :tiw>i mg teach undei g r a d u a t e Mit>i.it-. r*i\ eel lent t a c i b t i e - . new bu i ldmg. g rowing d . -pat t ' i f -n t . M m m m i n -a lary fti.tHH) lor tune mon th coiTtact. T e a c h i n g or mdu- t r i a l e x p e n - tuT 'le,i:d>l' O p p o ; t umt u toi - u m m e i e m -pU.\ rneit W r ie < . . , Chemica l EnuMUwitnc D e p a r t m e n t . \ l i - - i - - . p p i > t a t c Uui \e t . - i*v. S t a t e Cu t lege M , ~ , . ~ q . p .

SITUATIONS WANTED (ACS Members)

WANTEDRESPONSIBLE POSITION CHEMICAL PROCESSING INDUSTRY

T E C H N I C A L - MANAGER Ambi t ious self -s ta r te r s e e k s job offering m o r e oppor tun i t i e s to use b r o a d e x p e r i e n c e in t h e c h e m i c a l p rocess ing i ndus t ry . B a c k g r o u n d of l ine and staff posit ions m p r o d u c t i o n , a p p l i e d r e s e a r c h , control, d e p a r t m e n t a n d p lan t m a n a g e m e n t , new p r o d u c t d e v e l o p m e n t , p r o c e s s e conomics , cus tomer a n d supp l i e r re la t ions , organixat ion, and c o m m u n i c a t i o n s . B.S in Chemis t ry . A g e 38 B o x 3 2 7 - - 1 2 , C. & E . N \ , Eastern, P a .

l ' l i u d - v C H E M I C A L K N t i I N F E R : l U ' l i l . 12 vear- l ive:- , t ied expenei ice Hi p e t r o -I urn r-t.i..rg In . h m c l i d e - p roduc t ion . Te-hn i - al - . ^ ie, -Mp.-ix .-ion and economic- . >e-ires -. ' ' . ! / ., and evpeiu ' i ice. ,. 30*1 12 C - 1 E a - t . m . Pa.

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R l O ( 1 . \ > M - 1955 T U i v \ v i r s d i v e - ; t i . - d e x p e r i e n c e m r e - e a r c h :m * - l u m p t o t e . n - , r i t : . i l l . . a l M S J U H I C * ThoroTXjl i k n o w l e d g e , , t M.H-h'ti... ! a n d v t t r d m e t h o d - . < "llt!ti*iTi:l -}>ll\ eie< t l o p l M e - i - . - j H V t I n p l i n t i . I U -e i v t-.. e l l e n t b a c k g r o u n d m o r g a n i c a n d a l i : i l \ ! l < : . ! c h e m l-t X D e - n e - l lh D 19 f e r m e n t a u . n l u o -

u t e celhii .- t- a g m g M M . I I ' V a n d m t a . a n g m e t a -l ' t n | > a t ! i u (v - jli m il ...! ;:!-!> 11 - p e i l u a t o -Z o a C u t l e n t h . : . 1 t 11 tn 1 P - e n d i \ g e 3t>. I >e - i t e : c - a r . | , o p p o i t u i t i t v m i!. . . \* I - t e l t i e l - l -P u h h - a t , . . , , -B . . \ 3 1 3 F 12 C A . t.!, I ,

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l i l O C H K M l s T P h D l n d u - t m l | . . . w n h n o n - l a b . u a l o r v a - v\ t-11 , - ! il ...i a . > \ P - p o n - i b d i t i e - , d e - i r e - t . . : m i , - e i v u i n i . c m b o t h ^ r : [ . ; . l . [ . ' . . t d u e t . l ig e t . r ' - . - e - p l l i e d b v I i e e d - .! J ' . t . Ci 11 1 J x . l t \ ..t | \ M . i i i i - . i a g e 31 v e t e i u i ! . . . ! m i p i . . te--1 >u al - " . , i-'.i.l.r.t...... B o x 311 F 12 C : . - t . . IV

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" A N A L Y T I C A L C H K M l s T : P h . D . . lj.w. N i n e y e a r - exj.^ei e n c e . - u p e t \ i - < . r > r e - p o i i - i b i l i t y , in m e t h o d s d e \ e l o p m e n t . h " a \ y c h e u i K - a l c u n . e i n . F o u r : - t r o \ t . a n d i n d u - t \ - - p o n - . . r e d r e s e a r c h w i t h l e a d i n g i n s t i t u t e . F a m i l y m a n . 3S. S e e k - i e - p o n - i b l e p o - i t i o u w i t h r e - e a r c h n p p o r -t u i u t y in m d u - t i i a l o r i n d e p e n d e n t a n a l y t i c a l l a b o r a t o r y . A \ : i i l a b l e i m m e d i a t e l y . W ' e - t e r n l o c a t i o n p i e f e r r e d . B o x 317 F 12 C . - K. S F . a - t < , n . P a .

R K T D Y T O S T F P I P T H F . L A D D K R : O r -g a n i c P h . D . . . - e \ e n \ e a r - d i \ e r - i t i e d - y n t l u - t i c e x -p e r i e n c e in m e d i c i n a l c h e m i - t r y . > e e k - s u p e r v i - o t \ -p o s i t i o n . R & D o r o t h e r a r e a w h e r e t h i s b a c k -g j o i m d - o t v a l u e . B o x 31S F 12. C . A- K . N . . K a < t o n . P a .

( I K \ \ ~ N C I F . F R : IS > e a r * r o d i i T t T T i -r e - u l t > m p ro -e>- a n d p r o j e c t e n g i n e e r i n g , p l a n t m a i n t e n a n c e . p r o c e - > d e v e l o p m e n t , p r o d u c t i o n t r o u b l e - - h o o t i n g . C a n h a n d l e b r o a d r e - p o n . - i -b i h t \ m - n . a i l e : c m p a i n . M . C h . F . F ' a m i l v . B o x 32.S F 12. C . - K. N . . K : ; - t o n . P a .

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I U ( K U K M I s l A g e 2 l i . U i e d . d e - u e - a c a d e m i c , , . b . \ \ ill l e . e . v e P i . D t m n . I u n c i i v o t H i l l . . , - . . . . r b e t o i e - June P.l.V.I M u i o i . -. . r g a r . i . . I i e m i - t i v a n d b a d i . . | . .gv > m c h e i n . - t t \ 11 nit W ' a v n e S t a t e I i m e r - ; t y P..'>.">. l - ixper le i ice a - a t e a c h i n g a - - i - t i i t . B o x 313 .1 11 C . . F a - t . . i , ,

O R C A N I C C l i K M l S T : P h D . I a n . P.t.V. \ e t -ei a n 31 - m g l e . 3 l L v e a t - e x p e r i e n c e m t h e - t e r . . . I f ie ld u - a i g 1 a. 1 l o - a c t i\ e t r u e r t e < l m i . | u e -1 | , 1 - of m . - i e - t N e w r e a c t i o n - a n d - t i u - t u i d d e t e r m i n a t i o n - . D e - u e u i t e i e - t m g p o - i t i o n w\:'n i e - e : . r c | , - m i n d e d e m p a u v B o x 32 L 11 C F a - t o n P a .

P H Y S I C A L - A N A L Y ' T I C A L : P h D . , n i a r n e d . 3 2 . t w o c h i l d r e n , t h i e e \ e a r - i e - e a t c h e x p e r i e n c e . T e a c h i n g o r m d u - t i v . A v a i l a b l e i n . m e d i a t e l v . B o x 317 I . 11 C A K. N . . F a - t . . i i . P a

M A H K l T l N b U K S L A R C H S A L K S : A g e 2D. I L S . c h e m i - t r v , c i e d i t - t o w a r d M B A . K x p e i i -e n . e . l i . i : : k e t m g P - t - a r c h a n d m d u - t t i a l - a l e - . W i d e k n o w l e d g e of c h e m i c a l a n d c h e n u , a l u - i u g i n d u - t r i e - . D e - i r e i e - p o n - i b l e m a i k e f i e . - e a i < h l M . - i t i . i l N Y C a r e a B o x 321 1 1 1 C . F a - t o n . P M

K L R O P K X N ( I I K M I > 1 B l > I N F . M A N . P I . . D N o l a m . l v I > c i t i / e l i - l . i p t i n d e m -l . r a c e s p l a n t o p e r a t i o n s , p r o c e s s a n d q u a l i t y c o n -t r o l , - u p e i i - i o n . m - t r u m e n t a t i o n . r e - e a r c h a n d d e v e l o p m e n t . B o x 32 F 12. C . & F . N \ , K a - t o n , P a .

M O I L R i . > L A R ( 11 D K \ l L o P M L N l g a m c h e m . P U D . 43 b r o a d t e c h . e x p e n e i i . e M i . l w p ! t o P a - i t i , i . . a - t B. .x 3iC> I. 11 C - t o n P a

< J I L M I > T 21> y e a r - m n i d u - H v { l e n c e ! iti p a p e r e a t i n g p r * * e m p i v m e r - . e n i u l - i o i i -i n d *m- a - p i g m e n t b i n d e r - o r g a n i c - v n t h e - s -p h o O ^ r i p l i i . p i . - i u . T - r e - e e e h a n d m a n u t ac t u r e S u p e r v i - ion m r * - e a r < i i . p r o d u c t i o n , a i i t i p i a i i t v . o n t . . ! \ . U - p r n . t o - m ' if .rig .. t v .S nd u i ' -v e i M c 3 2 I ^ p . t ' - 1 . : , - , . , > B o v 3 1 4 I 11 < ! 1 - . a - t o n P .

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M 1 o . M \ I It N I \ ( . l \ l I 11 M > a n . b t , , ! 37 12 v e i l . - .Il : t . | l i . . l . - t | . t : ve p . . - i t . , . | , - il, l a d i n g i e - e . i < l , . n - t Miio-m .t ..., , r . . l . . g a n d . | . t , t .1 , p i l e - l u a k ' t i n g t e c f . i i i . . I -Mv.ce - v - l e m - *M -g.ritHM ng . ! a i i . ' v u . .! p p . - e - - . . . n ' : . . l d . t , .g g . l ig a n d d i g i l .1 c o m p . i t e - d e . - u e - r . - ( - il !e p o - . t . . : . ,n p i . . g ! e - - , v e o p - M i t . o t i - l e - e m t i a u t . . . m . i i . m p - . . g : a i . . i n - : m.Mit . . . . . m p i ' e i , . . ! , . -p a n v B o x 30 ' i I l l < 1 . - t . . n I ' .

> \ I . L > L . \ K < - . w , t h f u - t i a ' e I . . . k g p . - m d m i l i e - i u . - i l - foi t . - x t i l e m d u - t | \ . . f t . t -u i i u - u il c d l e . i L . l i o t . . t i t . H i k i n g - k i l l - - u c -c e l u i -t - - l i n g . . | g , n i / . r i g . . ' b e t - t . . - e l l . r e a t -llig W O P . - a n d i d e a - w i n - ll - e l l - a l e - e n g i l iee- i t ig of n e w p r o d u c t - C h e n , d e g i e . t . h I, , . . -

B . v 30 I I I < , - t . . n I ,

I M > I v i i i l M . ( l l l ' . M b - l B > l i g h t e d , N e a r - - < i . e - - l i | | e x p e r e - r i c e ill i e - i t i - , p l a - f n - a d -l u - i v e . - e a t i n g - t i r t e t i t d a i i t - ir . p - e g n a t ,. , t e . l u i . . p i e - p . p e t . o d f i l t e r - N u . . * v o u r p r o d uct wi l l d e v e l o p oi i m p r o v e it A g e 41 t . u . d v B o x 311 .1 11 i . F N K , - P U , p .

SITUATIONS WANTED (Nonmembers)

A D M I N | > - | R A D >R M I K N ' i l l I C H A C K -( . ! { ( > ! M > S i x v e a t - e x p e r i e n c e a - ... i u u n i - t a -t i \ e a - - i - t a l i t t . . \ P ..f i e -e : i t e i e o -s p e c i t i c a n d g r a t t p . . l \ u i e r i z a t m n . l a t n e - . w a t e i -- o l u l d e p . l \ n i e r - . T . p f h - h t a-a.h-i i i i i e c . p l a n d r e - e a r c h b a c k g r o u n d . K x c e l l e i i t r e t e r e n c e - . S u p e i v - o r y e x p e r i e n c e S e v e r a l p u b l i c a t i o n - , h e a v x p a t e n t l . a k g i o u n . L C ' a n w o r k i n d e p e n d -e n t l y . - e e k > r e - p o i i - i b i h t v . D e - u e - t e - e a : c h p . - i -t i o t i . P i e - e n t - a h u v $ 1 1 . 0 0 0 . B o x 003 L U < - K N . K a - t o n . P a .

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BROKERS PROTECTED B o x 9 0 7 - F - 1 2 , C. & . . , E a s t o n , P a .

PRODUCTION (Contitimd from pane 49)

First step in the process is to get lactic acid nitrilc from the continuous reaction ot acetadehx de with h\dro-cwuiic acid. This is then cracked in (lie presence of phosphoric acid using direct reduction at hot combustion gases at () C. into acr\ lonitrile and water. About two thirds of the lactic acid nitrilc converts to aerylonitrile, one third disintegrates to h\droc\anic acid dud acetaldehyde.

The process has certain advantages in Germany over the acet> ene-h> dro-c\ anic acid method. Although both processes have about the same plant investment and operating costs, the new one gives a 10 to 15' * higher \ ield. And possible savings in raw materials amount to about 10 ' , if the acetalde-h\ tie is made from eth> lent rathei than from aeetxlene. Furthermore, with this process. acr\ lonitrile produc-tion doesn't depend on location. Both acetaldeln tie and lactic acid nitrilc are transportable raw materials, in contrast with acctx lene and hvdrocxanic acid.

Beryl l ium more than 9 9 . 5 % pure has been produced by the Bureau of Mines experiment station at Boulder City, New The process starts with 9 4 ' beryllium and brings it up to ultra high purity with electrorefining in a molten salt bath. The work is part of a continuing study on properties of very pure metals.

Process to make plastics bacteriostatic has been developed by Puratize Inc., a subsidiary of Gallowhur Chemical. It involves adding small amounts of custom-made bacteriostats to the resin, colorant, or plasticizer. Each additive, says Puratize. is designed so that it's compatible with the base resin, stable at molding temperature, and so that it won't affect the resin's physical properties or color. The company expects to license the process to producers of molding compounds and to m older s. expects major markets for such plastics will be garbage cans, bathroom fixtures, and floor tiling.

Free use of the patented Sutherland process for producing high-yield, high-strength kraft pulps is being granted to the industry by Black-Clawson, following assignment of the patent to that

compam . The process consists maiulx ol using Sutherland refiners !>etween a vertu-al l>lo\v tank and pulp washers to fiberi-ze coarse, partially cooked pulp suspended in hot black liquor. Several kralt pulp mills have been using the process under a Sutherland license.

Coating for molybdenum developed b\ t l ie National Bureau of Standards for tlie Na\-\ Bureau of Aeronautics protect* the metal against oxidation at high temperatures. T o coat the metal, XBS etches the moh hdemim with concentrated sulfuric and phosphoric acids, then electroplates a 1 mil chromium tie-posit. The surface is e tched again (with hydrochloric acid) , given a nickel strike*, and plated with 7 mils of nickel using: a Wat t s type bath. The coating, according to XBS, has prevented oxidation of the moh hdemim for over 100O hours at 980 C. and for over 300 lours at 1 KM) C

EQUIPMENT (Continuai from page 57 )

scans several hundred process measure-ments at speeds up to five points per second. Output voltage of a measuring element is compared with a reference voltage which has been preset on a pinboard. A printer giving time and point number is optional. 12

Ne w pressure switch, developed by Meriiim Instrument, Cleveland, Ohio, consists oi a contactor manometer and a ielii\-pow er supply package. It can be used for alarm a n d / o r control for pressure, vacuum, differential pressure, flow, and liquid level. 13

Binary scaler, by Technical Associates, Burbank, Calif., has automatic electronic scaling factor up to 256. It can he used with Geiger, scintillation, or proportional detectors. 14

Air sampling method and kit, developed by Mine Safety Appliances, Pittsburgh, can detect traces of arsine. a hemolytic poison, ranging from less than 0.O-5 p.p.m. to four or more times that amount, the company says. 1 5

Further useful information on keyed Equipment items mentioned is readily available . . .

Us& handy coupon on page 58

98 C & E N D E C . I. 1 9 5 8

II \ \ SUMMHl l u I W K S T ui cumt: .* it r e tu rn .r [: t. lm.!it^- a,n*i |Kit m a s

. . . . . - I n i t . i * t . ! i . \ . ! 12

INDEX TO ADVERTISERS IN THIS ISSUE

Albereue Stone Corp 84 Ag* my G. M. Hdshirtl Co.

Allied Chemical Corp. , Baker Ac Adam-son Products. General Chemical Div 3rd Cover

Ak'.'iut/ \ther*on & Currier. Inc.. Allied Chemical Corp.. Nitrogen Divi

sion 70 Atifttiv G M Bustord Co.

Allied Chemical Corp., Solvay Process Div 2

Agency- Atherton & Currier. Inc. American Optical C o 36

Agencyy- J. C.. Kcll> Co.. Inc. Ansul Chemical Co 17

Agency The Brady Co.

Baker & Adamson Products. General Chemical Div. Allied Chemical Corp 3rd Cover

Agency Atherton & Currier. Inc. Becco Chemical Div., Food Machinery

& Chemical Corp 82 Agency-John Mather Lupton, Inc.

Berkman Instruments , Inc . . Scientific Ins t ruments Div 70 77

Agency--Charles Bowes Advertising. Inc.

Cambridge Instrument Co. , Inc 7 3 Agency .. M. Freystadt Associates,

Inc. Celanese Corp. of America 59

Agency-Ellington & Co.. Inc. Chesapeake and Ohio Railway 56

Agency Robert Conahay Inc. Continental Oil Co 54

AgencyBenton & Bowles. Inc. Coors Porcelain C o 32

Agency Frank L. Philips

Denver Equipment Co 7 3 Agency Galen E. Broyles Co. Int .

Distillation Products Industries, Div. of Eastman Kodak Co 4 2

Agency The Rumrill Co. Inc. Dodge & Olcott. I nc 71

Agency Calcon Advertising Corp. Dow Chemical Co 12 13

Agency MacManus, John & Adams, Inc.

Dow Corning Corp 6 9 Agency Church and Guisewite Adver

tising. Inc. E. I . du Pont de Nemours & Co. ( I n c . )

Grasselli Products 31 Agcncij Batten. Barton. Durxtine &

Oshorn, Inc.

Eastman Chemical Products. Inc 6 AgencyFred Wittner Advertising

Eco Engineering Co 75 Agency Ward William & Co.

Emery Industr ies . Inc 85 Ag. Garner Advertising

Koppers Ci.y.. Inc 60 61 Agt-ni'tf -Batten. Barton. Durstine &

Oshorn. Inc.

Leeds & Northrup Co 3 Agency - Harris IX MtKinnev, Inc.

Los AUnios Scientific Lahoratory 80 Age-ncy - Ward Hicks Advertising

Minnesota Mining and Manufacturing C o 44 45

Agf-nc/-MacMaiius, John & Adams. Inc.

Monsanto Chemical Co 63 Agency Gardner Advertising Co.

Morehouse-Cowles. Inc 4th Cover Agi n