NEW PRODUCTS representing the quantitative and configurational aspects of the pattern. The indicator dial of the apparatus is marked for 1- or 2-mm. paper move ments. An adapter is available per mitting the scanner to be used in a Beckman Model Β spectrophotometer. 14
impervious to oils, greases, and water and is resistant to soap, acids, alkalies, and other chemicals. The labels are self-adhesive and easily removed. They are reported to with stand temperatures of over 200° F. for 2 hours, or may be frozen without damage. They are available in three sizes in sheet form. 16
Multiple Stirrer Multiple stirrers with three or six spindles and constant temperature baths are being marketed by Labline, Inc. Originally developed for ASTM D 665 turbine oil rusting tests, the units can be used for other multiple applications where solutions must be stirred at constant speed and temperature. The bath is controlled with a hy draulic thermostat. An induction motor drives the spindles by means of an endless neoprene-covered nylon belt. Tall form beakers of 400-cc. capacity are used. 15 Laboratory Labels A label that is claimed to withstand the rigors of laboratory use has been developed by Avery Adhesive Label Corp. The Kum-Kleen label is made from a plastic impregnated stock that is
Aluminum Nitrate A pure aluminum nitrate reagent for use as the salting out agent in the fluorometric determination of uranium is available from Fisher Scientific Co. Uranium content of the chemical is reported as approximately 0.0000001%. 17 Radioactive Versene Carbon-14 tagged ethylenediaminetètraacetic acid, or Versene, is now being synthesized by Abbott Laboratories for research use. Because of its physical and biological stability, the material is expected to be of value as a tool for the study of food, enzymes, metabolism, reaction rates, metallic activation and deactivation, and for other purposes. The compound may be doubly labeled with most metallic ions in addition to the carbon-14 on the methylene carbon
SOMETHING SPECIAL in laboratory glassware In these days of fast-moving chemical developments, special laboratory apparatus is often required in a hurry. To handle your requests, Corning has expanded its facilities and staff of lamp workers. Now—no matter how heavy the demand is for standard PYREX laboratory ware, Corning can give you prompt service on specials. You are assured the same top quality of workmanship and serviceability in special apparatus that you get with standard products. So make Corning your headquarters for all your special requirements and be sure of getting what you want at reasonable cost. Call your laboratory dealer or write direct to Corning, Ν. Υ.
CORNING GLASS WORKS · CORNING, Ν. Υ. Corning means research in Glass
For further information, circle number 46 A on Readers' Service Card, page 41 A
48 A
atom. For instance, iron-55, iron-59, copper-64, and zinc-63 can be incorporated into the molecule. 18 API Hydrocarbon Samples Now available as American Petroleum Institute Standard samples of 5 ml. in borosilicate glass ampoules are: 2,2dimethyl-3-ethylpentane, 4-methylirarcs-2-hexene, 1-methvlcyclohexene. 19
MANUFACTURERS' LITERATURE Recording Spectrometer. Folder of 4 pages describes and gives specifications of recording spectrometer with range from 2100 to 7000 A. Leeds & Northrup Co. 20 Raman Spectrometer. Four-page data sheet describes recording Raman spectrographs equipment for rapid analysis in industrial laboratories. MinneapolisHoneywell Regulator Co. {Data Sheet 10.16-80). 21 Infrared Spectrophotometer. Sixpage brochure describes features and lists specifications of double-beam instrument for fast, efficient infrared analvsis. The Perkin-Elmer Corp. {Model 21). 22 Electrical Instruments. Catalog tabulates data and prices for microammeters, milliammeters, ammeters, voltmeters, and other instruments and accessories. Burlington Instrument Co. (Cat.N-1). 23 Furnaces. Catalog of 33 pages describes and gives specifications of furnaces, ovens, and control instruments for heat treating and general laboratory work. Κ. Η. Huppert Co. 24 Raman Spectrography Equipment. British-made spectrographs for use in photographic work or as direct reading instruments with Raman spectra, as well as accessories, described in 20-page booklet. Hilger & Watts, Ltd. {Cat. CH3S4/2). 25 Viscometers. Booklet of 21 pages briefly discusses rheology and describes use of viscometer that operates by measuring force required to rotate a spindle in a fluid. Brookfield Engineer ing Laboratories, Inc. {Solutions to Sticky Problems). 26 Adsorbents for Chromatography. Pamphlet of 8 pages discusses properties and application of acid, nonalkaline, and basic aluminum oxides with constant properties for use as adsorbents in For further information, see coupon on page 41 A ANALYTICAL
CHEMISTRY
