Product Capsules
Highly accurate ing and special types. P a c k a r d Instru m e n t Co., P . 0 . Box 428, LaGrange, 111. 92A F u n n e l s . Complete information avail able on funnels made of chemical por celain a n d designed in m a n y styles and sizes. Coors Porcelain Co., Golden, Colo. 86A-2
2-MINUTE
CARBON analysis
G l a s s w a r e , Borosilicate. Circle 23A for the new Kimble catalog which in cludes information on t h e new " K i m a x " line of laboratory glassware made from K G - 3 3 borosilicate glass. " K i m a x " features thermal and mechanical shock resistance, resistance to chemical at tack, accuracy, and long life. Kimble Glass Co., Toledo 1, Ohio. 23A
LCHEMICALSJ
Determine carbon content in just 2 minutes ! No complicated math ematics; eliminates costly timeconsuming routines. Accurate analysis of borings, mill chips, crushed samples, pel lets, etc. Dietert Detroit testing equ ment w i d e l y used in company laboratories and institutions of every descrip tion for over 18 years.
G l a s s w a r e , Borosilicate. Company states t h a t " P y r e x " b r a n d glass No. 7740 was selected as the best of hun dreds of borosilicate formulae, because it offers the most ideal balance of chem ical and t h e r m a l properties. Corning Glass Works, 72-9 Crystal St., Corning, Ν. Υ . 45Α
DIETERT DETROIT CARBON
Glassware, Custom-Made. Com p a n y m a i n t a i n s large corps of expert glass blowers, grinders, and engravers to produce custom-made laboratory glass ware. Scientific Glass A p p a r a t u s Co., Inc., Bloomfield, N . J. 31A
Determinator
Grinders. Information available on new high-speed laboratory grinder. Société Prolabo, 12 rue Pelée, Paris XI e , F r a n c e . 59A
3003 r
or the asking
Free Dietert-Detroit 16 page Catalog illustrates both Car bon and Sulfur Determinators and complete line of accessory equipment.
HARRY W . DIETERT CO. CONTROL 9330 ROSELAWN
EQUIPMENT Y
DETROIT 4, MICHIGAN
Send me your Carbon-Sulfur Determinator Catalog. NAME COMPANY ADDRESS
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CITY—— STATE Circle No. 76 A-1 on Readers' Service Card, page 87 A
76 A
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ANALYTICAL CHEMISTRY
certify your tests and procedures with the Yankee AC Variable Speed Rotator
Gauges. Circle 109A for details and prices on company's McLeod gauges cited as being accurate to within ± 3 % . Gauge will hold a t any position to which it is rotated. Ace Glass Inc., Vineland, N. J. 109A G e n e r a t o r s . Bulletin available on low C F H generator t h a t produces dissoci ated ammonia atmosphere for use in lab oratory furnaces a n d small production runs. L a b o r a t o r y E q u i p m e n t Div., Lindberg Engineering Co., 2440 W. H u b b a r d St., Chicago 12, 111. 97A-3
NO.
•wide range of speeds •positive speed control •automatic timing
Hot Plates. Circle 86A-1 for bulletin on laboratory h o t plates available in several types and sizes. T e m p e r a t u r e s range from 175° Γ . to 950° F . Laboratory E q u i p m e n t Div., Lindberg Engineering Co., 2440 W . H u b b a r d St., Chicago 12, 111. 8 6 A-1 Hot Plates, M a g n e t i c Stirrer. Con trols allow use of stirrer or hot plate in dependently or simultaneously. T e m peratures up to 600° F . Teflon covered stirring bars. Wilkens-Anderson Co., 4025 W . Division St., Chicago 51, 111. 75A Laboratory Equipment. Circle 38A for catalog on complete line of labora tory e q u i p m e n t : center tables, fume ( Continued on page 77 A )
A versatile Rotator f o r all regular proce dures. Positive governor-controlled speeds from 7 0 to 220 rpm. Automatic timing to 3 0 min., or continuous. 1 3 " χ 1 3 " plat form. $144.00
Yankee AC-DC Variable Speed Rotator Variable speeds from a p p r o x . 7 0 to 210 rpm. Dial speed control, automatic timing. 1 3 " χ 1 3 " platform. $ 1 0 0 . 0 0
Yankee AC Rotators Time-saving and more accurate than hand r o t a t i o n . O p e r a t e at 1 3 0 or 1 8 0 r p m . Timer cuts Rotator off in 1 to 5 min. 1 3 0 rpm, $ 7 2 . 0 0 ; 1 8 0 rpm, $ 7 2 . 0 0 All Yankee Rotators come with stainless spring bottle holder, and have non-slip pin-point rubber platform surfaces.
For Kahn Test Shaking and general laboratory use: Adams Utility Shaker
Attractive, precision-built shaker maintains speed of 2 7 5 - 2 8 5 oscillations per min. Holds 30 Kahn Test Tubes, or, with adjuster bars, accommodates beakers, flasks, etc. W i t h t w o adjuster bars, $ 9 9 . 0 0 . Kahn Test Tube Rack, $ 5 . 2 5 ORDER FROM YOUR DEALER
Clay-Adams
NEW YORK 10 Circle Nos. 76 A-2, 76 A-3 an Readers' Service Card, page 87 A
