Thiokol, Morton

R. A. McKay,M Study of Selected Parameters in S olid Propellant Processing,]et Propulsion Lab, Pasadena, Calif., Aug. 1986 J. L. Brown and co-workers. Manufacturing Technologyfor SolidPropellantIngredients/Preparation Reclamation, Morton Thiokol, Inc., Brigham City, Utah, Apt. 1985 W. P. Sampson, Eow Cost Continuous Processing of Solid Rocket Propellant, Al-TR-90-008, Astronautics Laboiatoiy/TSTR, Edwards AEB, Oct. 1990. 

Magnesium hydroxide is white, has an average particle size of 1—10 p.m, density of 2.36 g/mL, refractive index of 1.58, and Mohs hardness of 2.00. Water loss on ignition is 31.8 wt %. Magnesium hydroxide contains 1.0 wt % Ca(OH)2 and is made by Solem Industries and Morton Thiokol (25). 

This complex should be used when the organolithium is in solution in a hydrocarbon solvent. For organolithium reagents prepared in ether (see Note 4), the same complex may be used or, more conveniently, copper iodide (Cull can be used. The Cul purchased from Prolabo or Merck 4 Company, Inc. may be used directly. Other commercial sources of Cul (Fluka, Aldrich Chemical Company, Inc., Alfa Products, Morton/Thiokol, Inc.) furnish a salt which affords better results when purified. 1 mol of Cul is stirred for 12 hr with 500 ml of anhydrous tetrahydrofuran, then filtered on a sintered glass funnel ( 3), washed twice with 50 ml of anhydrous tetrahydrofuran, once with 50 ml of anhydrous ether and finally dried under reduced pressure (0.1 imO for 4 hr. 

Dimethyl carbonate is available from Aldrich Chemical Company, Inc. The checkers dried the tetrahydrofuran Immediately before use by distillation from the sodium ketyl of benzophenone under a nitrogen atmosphere. The submitters purchased sodium hydride (50% oil dispersion) from Alfa Products, Morton/Thiokol, Inc. The checkers used 12.24 g of a 50% dispersion of sodium hydride in mineral oil obtained from the same supplier. The dispersion was washed with three portions of pentane to remove the mineral oil and the remaining sodium hydride was allowed to dry under nitrogen. 

The submitters used a 35% dispersion of potassium hydride in mineral oil supplied by Alfa Products, Morton/Thiokol, Inc. the mineral oil was separated by washing the dispersion with five portions of dry hexane. The checkers used a 25% dispersion of potassium hydride in mineral oil obtained from the same source but without removing the mineral oil. The oil remained in the distillation pot when the product was distilled. 

The sodium hydride-mineral oil dispersion was purchased from Alfa Products, Morton/Thiokol, Inc. 

Ethereal methyl1ithiurn (as the lithium bromide complex) was obtained by the submitters from Aldrich Chemical Company Inc. The checkers used 1.19 M methyl1ithiurn-lithium bromide complex in ether supplied by Alfa Products, Morton/Thiokol, Inc. The concentration of the methyllithium was determined by titration with 1.0 M tert-butyl alcohol in benzene using 1,10-phenanthroline as indicator. The submitters report that ethereal methyllithium of low halide content purchased from Alfa Products, Morton/Thiokol, Inc., gave similar results. 

Although ethereal solutions of methyl lithium may be prepared by the reaction of lithium wire with either methyl iodide or methyl bromide in ether solution, the molar equivalent of lithium iodide or lithium bromide formed in these reactions remains in solution and forms, in part, a complex with the methyllithium. Certain of the ethereal solutions of methyl 1ithium currently marketed by several suppliers including Alfa Products, Morton/Thiokol, Inc., Aldrich Chemical Company, and Lithium Corporation of America, Inc., have been prepared from methyl bromide and contain a full molar equivalent of lithium bromide. In several applications such as the use of methyllithium to prepare lithium dimethyl cuprate or the use of methyllithium in 1,2-dimethyoxyethane to prepare lithium enolates from enol acetates or triraethyl silyl enol ethers, the presence of this lithium salt interferes with the titration and use of methyllithium. There is also evidence which indicates that the stereochemistry observed during addition of methyllithium to carbonyl compounds may be influenced significantly by the presence of a lithium salt in the reaction solution. For these reasons it is often desirable to have ethereal solutions... 

Commercial phosphorus sulfide, 45 0, is used without purification. Checkers used P4S10 from Matheson, Coleman and Bell and from Alfa Products, Morton/Thiokol, Inc. Best results (yield, melting point) were obtained with the Alfa sample, mp 291-295°C. 

Source Courtesy of Morton Thiokol Inc, With LP-31, 5.0 parts of Pb02 was used. 

Funding for the conference came from the ACS Division of Inorganic Chemistry the Petroleum Research Fund, administered by the ACS and the Alfa Products Division of Morton Thiokol, Inc. Portions of travel expenses were borne by AT T Bell Laboratories BBC-Brown, Boveri Co. Exxon Research and Engineering and Imperial Chemical Industries, Ltd. The conference would not have occurred without the generous support of these organizations. Finally, I wish to thank all of the contributing authors, whose cooperation and timeliness have been greatly appreciated. 

Silica gel (obtained from E. Merck or Alfa Products, Morton/Thiokol Inc.) was used (420 g, 70-230 mesh) in a 5.5 x 60-cm column eluted with 10% ethyl acetate in hexane. 

Engineers-Architects, 68 Chemical Research Development and Engineering Center, 212 Department of Army, 234 Detector Electronics Corporation, 183 Hazards Research Corporation, 269 Morton Thiokol, 286... 

The most recent report available on di- -octylphthalate lists three commercial producers Vista Chemical Company, Houston, Texas Aristech Chemical Corporation, Neville Island, Pennsylvania and Teknor Apex Company, Hebronville, Massachusetts and Brownsville, Texas (EPA 1993a). Additional reported producers include Eastman Kodak Company, Rochester, New York (USITC 1994) Tenneco Chemical, Inc., Chestertown, Maryland (EPA 1987a) Alfa Products, Morton Thiokol, Inc., Danvers, Massachusetts Primachem, Inc., Englewood Cliffs, New Jersey and GCA Chemical Corp., Stamford, Connecticut (HSDB 1995). Table 4-1 lists the U.S. facilities that manufacture or process di-w-octylphthalate. 

Archibald, Coburn, and Hiskey at Los Alamos National Laboratory (LANL) have reported a synthesis of TNAZ (18) that gives an overall yield of 57 % and is suitable for large scale manufacture. Morton Thiokol in the US now manufactures TNAZ on a pilot plant scale via this route. This synthesis starts from readily available formaldehyde and nitromethane, which under base catalysis form tris(hydroxymethyl)nitromethane (35), and without isolation from... 

A suspension of 50% sodium hydride in mineral oil, purchased from Alfa Products, Morton/Thiokol Inc. or Nakarai Chemicals, Ltd., is used di rectly. ... 

Lithium wire (3.2 mm dia., 0.02% Na, Alfa Products, Morton/Thiokol Inc.) is cut into 1-cm pieces, then washed with hexane and quickly weighed into a taped beaker of hexane. The checkers also used lithium shot (BDH) the lithium did not all dissolve at room temperature, and heating at 70°C for 5 hr was necessary to discharge the blue color. 

Sodium hydride, 50% oil dispersion, was purchased from Alfa Products, Morton/Thiokol Inc. Tetrahydrofuran was freshly distilled from sodium/benzophenone. Propargyl bromide (80% in toluene) was purchased from Aldrich Chemical Company, Inc. and used directly. 

Anhydrous zinc iodide was purchased from Alfa Products, Morton/Thiokol, Inc., and used without further purification. In one run the checkers used 0.25 nmol of Znl2 and obtained a better yield than when they used 0.19 mmol of Znl2 (84% yield instead of 73%). 

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