N e w Products
Labwareand instruments 100 Spill cleanup kit. Portable unit cleans acids, alkalies, caustics, and mercury. Mallinckrodt Inc. 101 Electrode kit. Attachment to pH meters measures pH of 1-drop samples. Beckman Instruments 102 Molecular still. Provides short-path, fast vacuum distillation of heavy molecules. Pope Scientific Inc. 103 Magnetic stirring bar. Wedge shape gives strong mixing action for viscous solutions. Bel-Art Products 104 Automated discrete sampler. 210-position sampler for use with fluorescence instrumentation. Farrand Optical Co. 105 Laboratory furnace. Heats to 1290° C with semiprogramable control system. L&L Special Furnace 106 Hydrogen purifier. Labsized unit purifies commercial-grade hydrogen to analytical quality. Teledyne 107 Bench-top chemostat. Culture apparatus controls growth parameters. New Brunswick Scientific 108 Chest bio-freezer. Maintains —86° C. Forma Scientific 109 Disposable beakers. Graduated in metric and English units. R. P. Cargille 110 Liquid particle analyzer. Eliptical mirror optics measure 2 to 200 micrometers. Climet Instruments.
Plant equipment and instruments 113 Ceramic fiber insulator. Cures in air and resists temperatures of over 2000° F. Carborundum
114 Nitrogen oxides analyzer. Chemiluminescence of reaction with ozone gives levels to parts per billion. Cooley & Shillinglaw
127 Biochemical separations. Catalog includes ion exchange, gel filtration, affinity chromatography. LKB Instruments
140 Isophthalic acid. Describes physical properties, specifications, for use in pharmaceuticals, fibers. Amoco Chemicals
115 Corrosion-resistant flowmeter. Operates at high temperature and pressure. Tek-Mark
128 Diamines. Bulletin describes products for froth flotation and pigment dispersion. Armak
141 Molecular weights. Note describes measurement with low-angle laser scattering photometer. Chromatix
129 Cadmium information. 28-page guide with bimonthly updates abstracts the literature. Cadmium Association
142 Batch process GC/MS. How to increase the number of samples run during working hours. Hewlett-Packard
117 Flame photometric detector. Fast, parts-per-billion analyzer of sulfur compounds. Process Analyzers
130 Biochemical catalog. 170 pages list enzymes, nucleic acids, immunochemicals, others. Miles Laboratories
143 Safety catalog. 96 pages list 4000 products that meet OSHA specifications. Industrial Safety & Security
118 Water purification system. Reverse osmosis principle purifies 250 liters per hour. Millipore Corp.
131 Corrosion-resistant coatings. Selection guide based on end use. Wisconsin Protective Coating Corp.
119 Hydrogen cyanide analyzer. IR device continuously monitors changes in hydrogen cyanide levels to 0.5 ppm. Wilks Scientific Corp.
132 Organic chemicals. Catalog includes more than 8000 chemicals for research, development, and manufacturing. Chemical Cynamics Corp.
116 Multigas monitor. Checks four hazardous gases at eight points. International Sensor Technology
120 Gas cooling system. Recycles thermal energy from exhaust gases being cooled for dust removal. Lear Siegler 121 Remote reading thermometer. One bulb size accommodates temperatures f r o m - 3 2 0 ° to 1200° F. Dresser Industries 122 Solvent vapor recovery. Handles acetone, MIBK, and toluene in coating applications. Hoyt Mfg. 123 Ribbon blender. Stainless steel unit for chemical use has removable agitator, double ribbon flights. Letsch 124 Pump impeller. Impervious graphite and silicon carbide give long life in corrosion-abrasion environment. Union Carbide
133 Rental electronics. Catalog of more than 800 instruments available on a monthly basis. Continental Leasing 134 Silicones. 38-page catalog lists full line. Dow Corning 135 Toxic gas monitors. Measure and warn of danger from carbon monoxide, hydrogen sulfide, oxides of nitrogen. Energetics Science 136 Secondary ion MS. Components to add to spectrometers have mass range to 1000 amu. Extranuclear Laboratories 137 Chromium determination. Use of differential pulse polarography for trace-level studies detailed. Princeton Applied Research
Chemicals and materials 146 Scrubbing agent. Treated lime removes more sulfur dioxide from flue gases without producing scaling. Dravo 147 Graphite fiber. Continuous fiber at greatly reduced cost for use in automotive industry. Hercules 148 Antimony oxide. In colloid form, has 100 times surface area, requires 40 to 60% less for pigmentation. Nyacol 149 RIA reagents. Eliminate pipeting step to allow for automated analysis. Beckman 150 Red phosphorus. Purity greater than 99.999% and practically dust free. American Hoechst 151 2,2'-Azobis(2-amidinopropane) hydrochloride. A water-soluble azo-type initiator. Crescent Chemical Co. 152 Pesticide study solvents. Three types available with no impurities that interfere with pesticide residue determinations. J. T. Baker
Literature
138 Synthesized fragrances. Selection guide for use in disinfectants, detergents, household cleaners. SCM Corp.
153 Barium pentahydrate. For lubricating oils, paper pigments, gasoline additives. Sherwin Williams Co.
126 Polymers and fire film. 14-minute film on toxic gas, oxygen levels in room-scale fires. B. F. Goodrich
139 Process control systems. Analog systems for chemical plants described. Westinghouse Electric
For information on these items or numbered ads, see Reader Service Card March 21, 1977 C&EN
51
