Influence of Oxygen

Acrylic acid derivatives. Acrylic esters polymerise readily under the influence of oxygen, peroxides, light or heat to give colourless, glass-Uke plastics. 

Upon removal of the auxiliary, an enantioenriched product could be obtained. The application of chiral auxiliary-based methods to Simmons-Smith cyclopropanation not only provided a useful synthetic strategy, but it also served to substantiate earlier mechanistic hypotheses regarding the directing influence of oxygen-containing functional groups on the zinc reagent [6dj. 

Generally, the corrosivity of water containing dissolved salts increases at low-salt concentrations, until some maximum is reached, and beyond this maximum the corrosion rate decreases. Corrosion rate throughout the salt concentration range is under the influence of oxygen s ability to depolarize. It is believed that... 

Ruther, W. E. and Hart, R. K., Influence of Oxygen on High Temperature Aqueous Corrosion of Iron , Corrosion, 19, 127t (1963)... 

Alten, H., Stjemberg, K., and Lux, B., Influence of Oxygen and Water Traces Contained in the Reaction Gases Used for AI2O3 Deposition by CVD, Proc. 5th. European Conf. on CVD, (J. Carlsson and J. Lindstrom, eds.), pp. 388-393, Univ. of Uppsala, Sweden (1985)... 

There are over 400 different commercial alkyd resin formulations based on phthalic anhydride used in the coatings business. Alkyd resins for paints are made by reacting phthalic anhydride with a poly-alcohol (usually from naturally occurring sources rather than synthetic) that contains unreacted double bonds. The paint dries by the resin crosslinking through reaction of the double bonds under the influence of oxygen in the air. 

Thermal conversion of organic waste material, such as plastics, or of biomass under the influence of oxygen into crude synthesis gas yields a hydrogen gas. 

Atalla, S.L., Toledo-Pereyra, L.H., MacKenzie, G.H. and Cederna, J.P. (1985). Influence of oxygen derived free radical scavengers on ischaemic livers. Transplantation 40, 584-590. 

Thin catalyst layers on a GC rotating disk electrode (RDE) or a rotating ring-disk electrode (RRDE) serve for studies of ORR kinetics. In order to separate the kinetic current from the measured current j, Schmidt and co-workers [Schmidt et al., 1998b] corrected the latter for the influence of oxygen diffusion in the aqueous electrolyte and in the polymer film using the foUowing equation ... 

The composition of the carrier gas containing the nitrogen oxides is another very important factor in NO removal. The influence of oxygen content in N2/02/N0 mixtures on the conversion of NO was investigated [26-28], The addition of water vapor [26,27,29-32], carbon dioxide [26,32] and hydrocarbons [27-35] was studied as well. 

Bennick MHJ, Vorstman W, Smid EJ and Gorris LGM. 1998. The influence of oxygen and carbon dioxide on the growth of prevalent Enterobacteriaceae and Pseudomonas species isolated from fresh and controlled-atmosphere-stored vegetables. Food Microbiol 15(5) 459-469. 

Influences of Oxygen Chemisorption and of Metal Ions in Ignition and Combustion... 

Tewarson, A., Lee, J.L., and Pion, R.F., "The Influence of Oxygen Concentration on Fuel Parameters for Fire Modeling," Eighteenth Symposium (International) on Combustion, 1981, The Combustion Institute, Pittsburgh, PA, p. 563. 

Fig. 19 Influence of oxygen as an alternative binding site in intrazeolite singlet oxygen ene reactions.

Nielsen, P.H., K. Raunkjaer, N.H. Norsker, N.Aa. Jensen, and T. Hvitved-Jacobsen (1992), Transformation of wastewater in sewer systems —Areview, Water Sci. Tech., 25(6), 17-31. Norsker, N.-H., P.H. Nielsen, and T. Hvitved-Jacobsen (1995), Influence of oxygen on biofilm growth and potential sulfate reduction in gravity sewer biofilm, Water Sci. Tech., 31(7),... 

Norsker, N.-H., P.H. Nielsen, and T. Hvitved-Jacobsen (1995), Influence of oxygen on biofilm growth and potential sulfate reduction in gravity sewer biofilm, Water Sci. Tech., 31(7), 159-167. 

N.D. Popovich, S.S. Wong, S. Ufer, V. Sakhrani, and D. Paine, Electron-transfer kinetics at ITO films — influence of oxygen plasma, J. Electrochem. Soc., 150 H255-H259, 2003. 

Photobleach mechanism, 19 203 Photobleach reversal grains, 19 201 Photocatalysis, 19 73-106. See also Photocatalysts Photoreactors aqueous pollutants eliminated and mineralized by, 19 89t catalyst modifications in, 19 94-95 catalysts in, 19 75-76 challenges in, 19 101-102 fate of photo-holes in titania, 19 82-85 in fine chemistry applications, 19 102 influence of oxygen pressure in, 19 82 ion doping in, 19 94-95 mass of catalyst in, 19 77-78 noble metal deposit in, 19 94 parameters governing kinetics in, 19 77-82... 

Marschall C, Frenzel P, Cypionka H. 1993. Influence of oxygen on sulfate reduction and growth of sulfate-reducing bacteria. Arch Microbiol 159 168-73. 

Figure 16.6. Influence of oxygen on stress in Cr electrodeposits produced at 86°C and a current density of 750 mA/cm. (From Ref. 15, with permission from the Institute of Metal Finishing.)...

It is of importance to draw a distinction between additions which are sensitive toward oxygen and those which are not sensitive toward oxygen. For instance, metallic potassium, under the influence of oxygen, forms potassium oxide, and the promoting effect of the latter differs from that of the alkali-metal. The same element can act on the catalyst differently, depending on whether it is present as the oxide, chloride, or other compound. ... 

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