Phillips Soluble

Fluorocarbons are made commercially also by the electrolysis of hydrocarbons in anhydrous hydrogen fluoride (Simons process) (14). Nickel anodes and nickel or steel cathodes are used. Special porous anodes improve the yields. This method is limited to starting materials that are appreciably soluble in hydrogen fluoride, and is most useflil for manufacturing perfluoroalkyl carboxyflc and sulfonic acids, and tertiary amines. For volatile materials with tittle solubility in hydrofluoric acid, a complementary method that uses porous carbon anodes and HF 2KF electrolyte (Phillips process) is useflil (14). 

These siUca-supported catalysts demonstrate the close connections between catalysis in solutions and catalysis on surfaces, but they are not industrial catalysts. However, siUca is used as a support for chromium complexes, formed either from chromocene or chromium salts, that are industrial catalysts for polymerization of a-olefins (64,65). Supported chromium complex catalysts are used on an enormous scale in the manufacture of linear polyethylene in the Unipol and Phillips processes (see Olefin polymers). The exact stmctures of the surface species are still not known, but it is evident that there is a close analogy linking soluble and supported metal complex catalysts for olefin polymerization. 

Swanson, (31 ) Smith,(32) Phillips, ( 33 ) and others have described many aspects of "EHe Zirflex process but, unfortunately, not the form or charge of plutonium and other actinides in spent decladding solution. Presumably, soluble amounts of these elements are present as fluoride complexes, but this remains to be proven. 

Gum Arabic (GA) or Acacia gum is an edible biopolymer obtained as exudates of mature trees of Acacia Senegal and Acacia seyal which grow principally in the African region of Sahe in Sudan. The exudate is a non-viscous liquid, rich in soluble fibers, and its emanation from the stems and branches usually occurs under stress conditions such as drought, poor soil fertility, and injury (Williams Phillips, 2000). 

Although reduction of chromate Cr to Cr has been observed in a number of bacteria, these are not necessarily associated with chromate resistance. For example, reduction of chromate has been observed with cytochrome Cj in Desulfovibrio vulgaris (Lovley and Phillips 1994), soluble chromate reductase has been purified from Pseudomonas putida (Park et al. 2000), and a membrane-bound reductase has been purified from Enterobacter cloacae (Wang et al. 1990). The flavoprotein reductases from Pseudomonas putida (ChrR) and Escherichia coli (YieF) have been purified and can reduce Cr(VI) to Cr(III) (Ackerley et al. 2004). Whereas ChrR generated a semi-quinone and reactive oxygen species, YieR yielded no semiquinone, and is apparently an obligate four-electron reductant. It could therefore present a suitable enzyme for bioremediation. 

The setting reaction of dental silicate cement was not understood until 1970. An early opinion, that of Steenbock (quoted by Voelker, 1916a,b), was that setting was due to the formation of calcium and aluminium phosphates. Later, Ray (1934) attributed setting to the gelation of silicic acid, and this became the received opinion (Skinner Phillips, 1960). Wilson Batchelor (1968) disagreed and concluded from a study of the acid solubility that the dental silicate cement matrix could not be composed of silica gel but instead could be a silico-phosphate gel. However, infrared spectroscopy failed to detect the presence of P-O-Si and P-O-P bonds (Wilson Mesley, 1968). 

Norman, R. D., Swartz, M. L. Phillips, R. W. (1957). Studies on the solubility of certain dental materials. Journal of Dental Research, 36,... 

W. R. Streit, C. M. Joseph, and D. A. Phillips, Biotin and other water-soluble vitamins are key growth factors for alfalfa rhizosphere colonization by Rhizobium meli-loti 1021. Molec. Plant Microbe Interact. 5 330 (1996). 

With a molecular weight for magnesium hydroxide of 58.3 g/mole, the solubility is equivalent to 8.36 mg per liter. The Bayer product Original Phillips Milk of Magnesia contains 400 mg of magnesium hydroxide per teaspoon (volume estimated at 5 mL) or 8.00 x 104 mg per liter. Clearly a saturated solution From the amount of dissolved Mg(OH)2, the pH of the solution can be determined, for... 

Churchley JH, Greaves AJ, Hutchings MG, James AE, Phillips DAS (2000) The development of a laboratory method for quantifying the bioelimination of anionic, water-soluble dyes by a biomass. Water Res 34 1673-1679... 

FI Tomozawa, D Braun, SD Phillips, AJ Fleeger, and FI Kroemer, Metal-polymer Schottky barriers on cast films of soluble poly(3-alkylthiophenes), Synth. Met., 22 63-69, 1987. 

Liquid Solubility in Weight Per Cent (Phillips Petroleum Co., 13)... 

Commerical polymerizations of ethylene, propene, and other a-olefins are carried out as slurry (suspension) and gas-phase processes [Beach and Kissin, 1986 Diedrich, 1975 Lieberman and Barbe, 1988 Magovern, 1979 Vandenberg and Repka, 1977 Weissermel et al., 1975]. Solution polymerization has been used in the past for ethylene polymerization at 140-150°C, pressures of up to 8 MPa (1 MPa = 145 psi = 9.869 atm), using a solvent such as cyclohexane. The solution process with its higher temperatures was employed for polymerization with the relatively low efficiency early Phillips initiators. (Polyethylene, but not the initiator, is soluble in the reaction medium under the process conditions.) The development of a variety of high-efficiency initiators has allowed their use in lower-temperature suspension and gas-phase processes, which are more advantageous from many... 

Parr, S. R., Barber, D., Greenwood, C., Phillips, B. W., and Melling, J. (1976). A purification ptocedure for the soluble cytochrome oxidase and some other respiratory proteins from Pseudomonas aeruginosa. Biochem. J. 157, 423-430. 

In 1839, H- Rose said that the ordinary commercial carbonate liquefied when slowly heated in a retort whereas, in 1870, E. Divers found scarcely any liquefaction. The older carbonate when distilled with anhydrous calcium chloride gave ammonium chloride, calcium carbonate, and carbon dioxide, whereas the newer carbonate gave in addition ammonium carbamate. The solubility of the newer carbonate is about twice as great as the old and the aq. soln. is not charged with carbon dioxide. R. Phillips and E. Divers have also reported as rare the occurrence of the hydrocarbonate in commercial carbonate. In consequence of these differences it is necessary to know whether the old or the new carbonate is in question when discussing the properties of the commercial carbonate. Sometimes the sesquicarbonate is to be understood. 

---