C&EN PROGRESS REPORT
EQUIPMENT
Companies added these products to their lines during the past month INSTRUMENTS AND CONTROLS . . . Product pH Meter
(Model 1019) Nuclear detector Potentiometer
Paper chromatograph (PLE 400) Portable oxygen analyzer
Company Beckman Instruments, Inc. Fullerton, Calif. Electro-Nuclear Laboratories Mountain View, Calif. Honeywell, Apparatus Controls Division Minneapolis, Minn. Possis Machine Corp. Minneapolis, Minn. Precision Scientific Co. Chicago, III.
Features
Has relative accuracy to within ±0.001 PH Detects and measures particles in all dimensions For temperature control and indication Permits simultaneous processing of four different or identical samples For use in laboratory, plant, or streams and lakes
EQUIPMENT AND LABWARE Welding equipment (Model A6-T) Cartridge-type filters (CG-S Series) Fluoridation unit (Degna) Plating anode (Titanex) Ultrahigh-vacuum evaporator Splash goggles Small-volume pump (Millijector) Heat-sealing machine (Multipoint sealing)
BRIEFS Rigid vinyl building panels made and marketed by Monsanto have been ap proved for use as a building material by the Board of Standards and Ap peals of New York City. Sold under the name Lustra-Span, the material has been found to be self-extinguishing by the board's committee on test. New York City approval clears the way for use of the panels in locations where glass is permitted, such as sky lights, patio roofs, awnings, and parti tions, according to Monsanto.
A new nylon 66 polymer has been de veloped by Badische Anilin-und SodaFabrik. The polymer has high heat resistance—a 1-millimeter-thick wall withstood 140° C. for 1000 hr. with 48
C&EN
NOV. 11, 1 9 6 3
Chemetron Corp., National Gas Cylinder Division Chicago, III. Cuno Engineering Corp. Meriden, Conn. Degna Corp. Paramus, N.J. Electrodics, Inc. Philadelphia, Pa. General Vacuum Corp. Medford, Mass. Mine Safety Appliances Co. Pittsburgh, Pa. Pressure Products Industries, Inc. Hatboro, Pa. U.S. Industrial Chemicals Co. New York, N.Y.
out impairment of mechanical prop erties. BASF gives no details on com position, says only that a stabilizing additive gives the polymer its prop erties. The material, which can be injection molded and extruded, can be used to make ball, needle, and sleeve bearings, automobile fans, and similar products. Called Ultramid A 4H, BASF sells the product only in West Germany (pending disposition of foreign patents) for 11.4 cents per pound more than its other nylon 66 products.
A cold-water, heavy-duty liquid laun dering detergent has been introduced by Lever Bros. According to the firm, cold-water "all" will effectively re move soils from all commonly washed clothes and fabrics in regular cold t a p
Interchangeable parts allow reduced in ventory and maintenance costs Can be used with either disposable or permanent cartridges For use on individual home water supplies To impart equal thicknesses of nickel on nonuniform parts Can reach pressures below 1 χ 10~ 8 mm. Hg Specially designed for the chemical in dustry Provides controlled flow rates from 1 to 240 cc. per hour For heat sealing of polyolefin films
water at temperatures as low as 40° F. Lever Bros, doesn't identify the ingredients in the low-sudsing prod uct, says only that a new phosphate complex has been developed to go along with conventional additives. To keep the ingredients in solution, the company says that a new mixing pro cedure was developed along with two new unidentified additives to give a stable homogeneous liquid.
International Protected Metals, Inc., formed by Engelhard Hanovia, Inc., and Triangle Conduit & Cable Co., will open its first plant in New Jersey soon. The company will make and market aluminum and steel pipe pro tected inside, outside, or both by a new process which molecularly bonds thermoplastic compounds to the metal
TENNESSEE'S
COPPER SULFATE
Complex at Copperhill, Tennessee. We produce Copper Sulfate of highest quality that will give optimum results wherever Copper Sulfate is used.
If you use Copper Sulfate in your operations, a dependable source of supply is important. We have been producing Copper Chemicals for a long time and feel that our position in Copper offers you, as a user, many advantages.
With Tennessee you can depend on a readily available supply, uniform particle size and a full line of crystals to meet your particular requirements.
We mine copper bearing ore and follow closely each step of processing in our Chemical Plant Call us for further information — JAckson 3-5024 or write.
TENNESSEE
CORPORATION
612-629 GRANT BUILDING, ATLANTA 3, GEORGIA
no vapor condensation in these new LaPine W/^gQDQDD^ 0m§ïï@D3(TM) high vacuum pumps... made by Leybold! Prolonged pumping time, limited ultimate vacuum obtainable and annoying oil contamination are but a few of the frustrations one is apt to meet when using ordinary high vacuum pumps. The villain committing these dastardly deeds is Vapor Condensation! The excessively high compression ratios high vacuum pumps must achieve in order to discharge gases from the vacuum system—often as high as 760:1—compress vapor particles so greatly that they condense to form droplets. As a result, the exhaust valve is not forced open by pump pressure and exhausting does not take place. In LaPINE Vacuum Master High Vacuum Pumps, fresh air—gas ballast—drawn from the outside, solves the problem. Excess pressure in the pump required to open the exhaust valve is produced before water particles can condense. Vacuum Master pumps may be operated first with the gas ballast valve open to remove vapor—then run
Model 2S
with the valve closed to obtain desired higher vacuum» CHOOSE THE LaPINE Vacuum Master PUMP TO MEET YOUR EXACT REQUIREMENTS . . . Four are available: Single-Stage, models 2S and 6S; Two-Stage, models 2D and 6D. All are manufactured by E. LEYBOLD's Nachfolger of West Germany, incorporate the most recent developments in pump design, and carryforward the 100-year-old LEYBOLD TRADITION of precisionmanufacture, fine performance and absolute reliability. Some of their superior features: Low ultimate pressure . . . Low noise level . . . High water vapor tolerance . . . Gas ballast operation at the twist of a knob . . . Visible oil level . . . No oil foaming . . . and Connections in seconds with small-flange fittings. Write today for your copy of the complete "LaPINE Vacuum Master High Vacuum Pumps" bulletin.
Model 2D L A P I N E SCIENTIFIC COMPANY Prompt Nationwide Service. Everything you need. A complete selection of types, models, recognized brands from our strategically located warehouses.
50 C & Ε Ν
Model 6D
Model 6S
OFFICES AND WAREHOUSES CHICAGO 6001 South Knox Ave., Chicago 29, III. Phone 312 REIiance 5-4700
NEW YORK So. Buckhout St., Irvington, N.Y. Phone 914 LYric 1-8900
CALIFORNIA 2229 McGee Ave. Berkeley 3, Calif. Phone 415 THornwall 5-3614
surface. According to the new firm, the IPM process differs from others in that a primer coating on the metal induces a true molecular bond that joins them as one substance. Varian Associates has entered the vacuum metallurgy market. The Palo Alto, Calif., firm has introduced a vacuum furnace capable of producing 5 Χ ΙΟ-9 torr at 3500° F. Conven tional furnaces are capable of produc ing a vacuum of 5 X 10~4 torr at 2000° F., according to the firm. The new furnace has sorption and ion pumps instead of the conventional mechani cal and diffusion pumps. Process for making wet-process superphosphoric acid and its liquid and
solid phosphate fertilizer derivatives has been developed by Collier Carbon and Chemical Corp. According to the Los Angeles, Calif., firm, it will make available for licensing all patents cov ering the process including the sub merged combustion process which will handle a broad range of feedstocks. A water-soluble alkyd resin for interior gloss and semigloss enamels has been introduced by Cargill, Inc., Minneapo lis, Minn. Resin 2400 combines the performance of resin-based paint with the convenience of a water system, the firm says. Unveiled at the 28th An nual Paint Industries Show in Phila delphia, the resin has excellent color and color retention, is virtually nonyellowing, and has good adhesion and washability.
November 11, 1953
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GROUNDS FOR GALLOTANNINS Electronics works from the "ground up" . . . and working right along are Mallinckrodt gallotannins. They bring sharpness to photography for printed circuits, sheen to elec troplated line couplers, shine to varnished cabinets housing equip ment. They inhibit polymerization of plastic wire insulation, deflocculate ceramic mixes, tan leather for protective cases.
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Construction Food & Kindred Products Textile Mill Products Paper & Allied Products Printing, Publishing, etc. Chemicals & Allied Products Plastics; Synthetic Resins Drugs Soap, Detergents, Cosmetics Paints, Varnishes, etc.
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Lubricants Rubber; Plastic Products Leather & Leather Products Stone, Clay, & Glass Products Primary Metal Industries Fabricated Metal Products Machinery & Equipment Transportation Equipment Instruments Education
Here at Mallinckrodt we're thor oughly grounded in the unique ca pabilities exhibited by gallotannin molecules. Perhaps one of them can provide the ground floor start for one of your products. Find out more about the Mallinckrodt gallic touch, write: Industrial Chemicals Division, Mallinckrodt Chemical Works, St. Louis, Mo. LINKING CHEMISTRY TO INDUSTRY
INDUSTRIAL CHEMICALS DIVISION St. Louis · New York· Montreal NOV.
11, 1963 C & E N
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