The shell of the P-K Type (LV) Lab Blender can be charged from either side by the quick removal of either of two dust- and watertight covers.
Product Capsules utility of existing chromatographic analyzers b y taking advantage of catalytic combustion detection tech niques. Davis I n s t r u m e n t Div., 276 Halleck St., N e w a r k 4, N . J . 6 2 A
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with ^
P-K's NEW (LV) LAB .BLENDER^ YOU GET THESE 3 DIFFERENT MIXING ACTIONS... L I Q U I D - S O L I D S T Y P E - To disperse and blend, uniformly, liquids of any viscosity with dry solids, just insert the wire cage liquidfeed bar assembly. Handles liquids from mi nute quantities up to 4 0 % of total weight. Liquid is introduced through hollow shaft of bar. Even critical formulations blended in 5 t o 10 minutes.
INTENSIFIER TYPE — To get intensive
mix ing of hard-to-blend dry solids, or t o break up agglomerates, use wire cage bar assembly. Average blending time for dry formulations: 3 to 5 minutes.
FOR GENTLE PRECISION BLENDING — Simply remove wire cage bar. Unique blend ing action will not cause attrition or break down even the most delicate crystals. Average blending time: 3 to 5 minutes.
This new P-K Type ( L V ) L a b Blender owes its versatility to the design of the removable, spring-loaded liquid-feed bar assembly. Liquids and solids are prevented from entering the bearing housings by an exclusive, patented seal. Standard ( L V ) L a b Blenders are available in 8 and 16 quart capacities, in transparent Lucite or stainless steel. Interior of shell and stain less steel bar assembly can be cleaned, clin ically, in minutes. Operates on 115 ν AC. Units can b e shipped from stock. For complete technical information and prices, write to PK's Chemical and Process Equip ment Division, 1012 Hanson Street, East Stroudsburg, Pennsylvania. \&Q
Patterson-Kelley A l l P-K T w i n - S h e l l Blenders a r e p a t e n t e d a n d the n a m e registered Circle No. 102 A-1 on Readers' Service Card, page 97 A 102 A
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ANALYTICAL CHEMISTRY
Chromatographs. Circle 44A-1 for d a t a file providing descriptive material and application information on t h e q u a n t i t a t i v e a n d qualitative analyses t h a t can b e m a d e quickly with t h e combination of t h e Beckman GC-2 gas chromatograph a n d t h e I R - 5 infrared spectrophotometer. Scientific a n d Process I n s t r u m e n t s Div., Beckman I n s t r u m e n t s , Inc., 2500 Fullerton Rd., Fullerton, Calif. 44A-1 C h r o m a t o g r a p h s . Circle 47A for de tailed literature on t h e P y e Argon chromatograph. Detects as little as 2 Χ 1 0 - 1 2 moles of most organic materials. Accepts samples as small as 0.025 microliter. Jarrell-Ash Com pany, 26 Farwell St., Newtonville 60, Massachusetts. 47A Chromatographs. Bulletin available on t h e " K r o m o - T o g model K - 5 . " Analyzes high boilers t o 475° C a n d over. 2 systems analyze simultane ously. Burrell Corp., 2223 5 t h Ave., P i t t s b u r g h 19, P a . 82A
FISHER
SCIENTIFIC
Chemical Manufacturing Division
REAGENT CHEMICALS AMERICA'S
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COMPREHENSIVE AT YOUR
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C h r o m a t o g r a p h y C o l u m n s . I n pres surized paper chromatography column system, ready-made paper roll insert loads into pressure m a n t l e which is inflatable b y means of pressure ballast flask. L i t e r a t u r e available. L K B Produkter Fabriksaktiebolag, B o x 12220, Stockholm 12, Sweden 120A Circulators. Portable constant t e m p e r a t u r e circulator for water or oil b a t h heating-circulation. T e m p e r a t u r e control in one compact unit. Bronwill Scientific Div., Will Corp., Box 127, Brighton Station, Rochester 10, Ν . Υ . 102A Classifiers. 8-page catalog available on t h e micro-particle classifier t h a t de termines dust particle size distribu tion below 60 microns. 1 6 " high X 1 6 V 2 " dia. H a r r y W . Dietert Co., 9330 Roselawn, Detroit 4, Mich. 117A-2 ' Cleaning Equipment. Aloe-Narda ultrasonic cleaning equipment is cited as being fast, low-cost, efficient. Circle 83A-1 for prices a n d more details. Aloe Scientific, 5655 Kingsbury, St. Louis 12, M o . 83A-1 C o l o r i m e t e r s . Full information avail able on differential colorimeter t h a t provides complete color measurements in less t h a n 30 seconds. M a n u f a c t u r e r s Engineering & E q u i p m e n t Corp., 10 Sunset Lane, H a t b o r o , P a . 109A-2
Fisher/Fair Lawn is the only major p l a n t ever d e s i g n e d exclusively for developing, m a n u f a c t u r i n g , a n a l y z i n g and packaging laboratory chemicals. Only b y building such a plant could F i s h e r a s s u r e h i g h p u r i t y i n over 7,300 c h e m i c a l s offered t o labora tories. So, n e x t time—look t o F i s h e r for your l a b o r a t o r y c h e m i c a l s . C o m p r e h e n s i v e stocks a r e m a i n t a i n e d i n seven key areas to serve you. B-49a
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yours for asking CHEMICAL INDEX 120-C 370 pages listing 7,344 chemi cals for laboratory use. Write: 100 FISHER BUILDING, PITTSBURGH 19, P i .
FISHER SCIENTIFIC
I N THE U.S.A. Cleveland St. Louis IN CANADA Boston Detroit Washington Edmonton Buffalo New York ,, , Charleston,W.Va. Philadelphia IN MEXICO Μ " " · " * 1 Chicago Pittsburgh Mexico City Toronto America's Larges? Manufacturer-Distribufor of laboratory Appliances & Reagenf Chemicals Circle No. 102 A-2 on Readers' Service Card, page 97 A
