C f i E N PROGRESS REPORT
INDUSTRIAL CHEMICAL SPECIALTIES For further information on these products, just check the appropriate key numbers on the coupon on page 60, and C&EN's Readers' information Service will forward your request to the manufacturer.
Material Liquid leak detector C 60 (FM Inert) C 61 Ion exchange celluloses (Whatman Advanced) Alkyldimethylamine oxides C62 (Barlox series) Chromatographic aluminas C 63 (Baker Analyzed, Brockmann Activity Grade I) Corn rootworm insecticide C 64 (Bux Ten Granular) Liquid contact herbicide C 65 (Paraquat) Flame-retardant beads (Pelaspan 333 FR) Epoxy-silver solder (Dynaloy 310) Precious-metal sulfide catalysts Dustless lab absorbent
C 66 C67 C 68
Chevron Chemical Co. San Francisco, Calif. Chevron Chemical Co. Ortho Division San Francisco, Calif. Dow Chemical Co. Midland, Mich. Dynaloy, Inc. Newark, N.J. Engelhard Industries, Inc. Newark, N.J.
C 69
Fisher Scientific Co.
C 70
Frank Kraus Co., Ltd. New York, N.Y. Marbon Chemical Division Borg-Warner Corp. Washington, W.Va. William F. Nye, Inc. New Bedford, Mass. Omega Engineering, Inc. Springdale, Conn. Pennsalt Chemicals Corp. Philadelphia, Pa. Petrolite Corp. St. Louis, Mo, Rexall Chemical Co. Paramus, N.J. Rexall Chemical Co. Paramus, N J .
(Clearsorb)
Cashew nut shell liquid (CNSL) Self-extinguishing thermoplastic (Cycovin KA)
Company American Gas & Chemicals, Inc. New York, N.Y. H. Reeve Angel & Co., Inc. Clifton, N.J. Baird Chemical Industries, Inc. New York, N.Y. J. T. Baker Chemical Co. Phillipsburg, N J .
Pittsburgh, Pa.
C 71
Low-shear instrument grease C 72 (NyoGel 1020) Tungsten-rhenium thermocouple C73 alloys Clean-room solvent cleaner C 74 (Isotron Precision Solvent Cleaner) Corrosion inhibitor C 75 (Kontol-472) Flame-retardant polymer C76 (El Rexene PP-11R5) Polypropylene homopolymers C 77 (El Rexene PP-51 series)
Features For checking propellant handling and storage equipment For separation of biologically active charged macromolecules For stabilizing foam in detergents, cosmetics, textile aids, and the like Give highly reproducible performance; label shows values of lot analysis for pH and adsorption Attacks rootworms resistant to chlorinated hydrocarbons For controlling weeds in noncrop areas; contains l,l'-dimethyl-4,4'-bipyridiniumbis(methyl sulfate) Expandable polystyrene beads for many applications Conducts electricity, dissipates heat, contains no solvent Palladium, platinum, ruthenium, and rhodium available in laboratory quantities supported on alumina pellets Aluminum oxide-vegetable charcoal decolorizer will not break down to dust
About 9 0 % anacardic acid (2-carboxy-3pentadecadienylphenol) High-strength, hard-finish ABS resin for injection molding Dolphin oil formulation bodied by carbons for instrument motor gear trains Can be used to 5000° F.. in hydrogen, inert gases, or vacuum Trichlorotrifluoroethane with total residue content not exceeding 1 p.p.m. Dimetallic polyphosphate oxygen corrosion inhibitor and scale preventive Polypropylene homopolymer with 95° C. continuous-use temperature rating Three resins for fiber extrusion; have differing stability to sunlight exposure
Available in commercial quantities unless otherwise noted.
tor. If credits can be obtained for the by-product, which could be sulfur or sulfuric acid, it would cost $1.00 per ton with a 90% operating factor or $1.64 with a 50% factor. Another process for sulfur removal is a catalytic gas-phase process worked on by Bituminous Coal Research and a group of coal producers. Costs for this process vary from 75 cents to $3.57 per ton of coal burned. At the current state of development, processes for sulfur dioxide removal are not economically feasible for small generating plants, Mr. Garvev says. Research in reduction of air pollutants in power plant effluent is continuing, but many auestions remain unanswered, he adds.
Peach Bottom reactor passes low-power tests The high-temperature gas-cooled nuclear power reactor (HTGR) at Peach Bottom, Pa., has successfully completed its low-power operating tests. Results of the tests, made by Philadelphia Electric Co. and General Atomic Division of General Dynamics (San Diego, Calif.), agree with theoretical predictions. The HTGR reactor is the heart of the 40,000-kw(e). plant on the Philadelphia Electric system. Initial chain reaction began March 3 when 682 fuel elements had been installed. This point in the loading agreed closely with the predicted ini-
tial reaction. All 804 fuel elements were installed by April 14. General Atomic and Philadelphia Electric personnel made the tests at power levels below 1000 kw(t). They studied such parameters as power distribution throughout the core, operating characteristics of control and shutdown rods, power level regulation by the control rods, and the nuclear characteristics of the core as affected by different types of fuel elements. Data analyzed so far indicate that the reactivity lifetime of the HTGR will be about three years. The reactor will also have a low over-all ratio of peak power density to average power density. MAY 23, 1966 C&EN 59
