NEW PRODUCTS cal, pharmaceutical, and allied industries. T h e unit has a distilland capacity of 100 to 1500 c c , with a distillation rate from a few drops to 100 c c . / m i n u t e . E x a c t regulation of t h e distilland boiler up to 300° C. is provided b y variable transformers. A v a c u u m gage indicates pressure between 1 and 1000 microns Hg. For pilot-plant scale simulation of commercial unit performance, Consolidated introduces t h e CMS-14. This centrifugal molecular still permits distillation of materials with molecular weights u p to 1200 with less danger of
thermal decomposition t h a n b y any other accepted method, t h e company says; in addition, some substances such as silicones and halocarbons, with m o lecular weights as high as 4000, can be safely distilled. Distillands are reported to be evaporated almost instantly in the CMS-14 a t pressures of 1 micron H g . and t e m p e r a t u r e s u p t o 260° C. Samples of 1 q u a r t to 5 gal. can be distilled a t a rate up to 1.5 gal./hr. Feed rate is variable and gages provide continuous measurem e n t of pressure and temperatures. T h e CMS-14 is manufactured under a licensing agreement with E a s t m a n K o d a k
Consolidated Type CMS-14
The finest laboratory
sinks
ARE MADE IN STANDARD SIZES
Pug Mill Mixer for Small Quantity Mixes
Fig. 586-SP, standard s i n g l e L.H. d r a i n board cast porcelain sink w i t h 8 " h i g h splash bock.
Lindcraft Corp.'s new laboratory model pug mill mixer is designed for hot, cold, wet, or dry mixing. Driven by a 3 /4-hp. motor, t h e mixer has a variable-speed drive of 20-60 r.p.m. According t o t h e company, t h e combined torque applied to t h e mixer shafts a t 20 r.p.m. is 2000 inch-pounds. I t s 110-volt operation is controlled b y push b u t t o n starting and stopping. T h e mixing chamber is designed t o be liquidtight and t h e drive mechanism is thoroughly guarded, t h e company reports. 4
Tool for Gas and Liquid Chromatography
The modern trend in laboratory furniture is to standardization. Standardized units are quantity produced at a savings. Higher quality, simplified ordering, faster delivery . . . this is progress! This same progress is reflected in the manufacture of " U . S . " Chemical Porcelain Laboratory Sinks.
A specialized instrument—tailorm a d e for chromatographic determinations of gases and liquids boiling below 80° C—is announced b y B e c k m a n I n s t r u m e n t s . K n o w n as t h e Gas Chromatograph t h e instrument is said t o be ideal for b o t h small and large laboratories because of its simplicity of design, compactness, accuracy, and speed. Chromatographic columns are copper tubing with s t a n d a r d fittings, and are easily removable. Columns of a n y length can be used in either absorption or partition t y p e . Samples are a d m i t t e d through a s t a n d a r d serum cap or an accessory sampling valve. Volumes of sample components removed from t h e column b y helium carrier gas are measured b y a diffusion-type thermal conductivity cell which is said t o combine
Although many " U . S . " Chemical Porcelain Sinks are custom-built to customers' specifications . . . they are also made in a wide range of standard sizes, based on the dimensions most frequently specified. Thus the customer can, in most cases, select a sink in a standard size and receive prompt delivery without the usual waiting period entailed for a hand made special sink. And, although he is buying the finest laboratory sink available—he finds a lower price tag on it because it was quantity produced by modern casting methods. " U . S . " Standard Laboratory Sinks are cast of chemical porcelain in one seamless jointless piece, with rounded corners inside and out. The glass-smooth grey glaze surface, an integral part of the solid porcelain body, is completely non-absorbent—can't stain or discolor. They are as easy to clean as a china dish. "Scouring and honing" are unnecessary. Check your Laboratory Furniture Dealer today for available standard sizes, or write direct for Catalog L-8. Chemical Ceramics Division
U. S. S T O N E W A R E AKRON 9, OHIO For further information, circle number 7G A on Readers' Service Card, page 71 A
76 A
Co., and is available on a royalty-free basis for noncommercial purposes, Consolidated reports. 1, 2 , 3
234-E
For further information, see coupon on page 71 A ANALYTICAL
CHEMISTRY
