F Carbonyl sulfide

In this group of readily oxidised materials, individually indexed compounds are Arsenic trisulfide, 0108 Bis(2,4-dinitrophenyl) disulfide, 3449 Bis(2-nitrophenyl) disulfide, 3465 Boron trisulfide, 0172 f Carbon disulfide, 0560 Carbon sulfide, 0559 f Carbonyl sulfide, 0556... 

The generally acidic materials in this group may function as oxidants, some rather powerful, under appropriate conditions. Individually indexed compounds are Arsenic pentaoxide, 0106 Arsenic trioxide, 0105 Boron trioxide, 0170 Carbon dioxide, 0554 f Carbon monoxide, 0552 f Carbonyl sulfide, 0553 Deuterium oxide, 4285 Diboron oxide, 0169 Dinitrogen oxide, 4739 Dinitrogen pentaoxide, 4743 Dinitrogen tetraoxide, 4720 Dinitrogen trioxide, 4741... 

These reactions are reversible by changing the system temperature. ME A also reacts with carbonyl sulfide (COS) and carbon disulfide (CSi) to form heat-stable salts that cannot be regenerated. At temperatures above 245°F a side reaction with CO2 exists that produces oxazolidone-2. a heat-stable salt, and consumes MEA from the process. 

TliCNC reactions are reversible. DEA reacts with carbonyl sulfide (CUS) and carbon disulfide (CS2) to form compounds that can be regenerated in the stripping column. Therefore, COS and CS2 are removed without a loss i)f DEA. Typically, DEA systems include a carbon filter but do not include a reclaimer. 

Zettler, J.L., Leesch, J.G., Gill, G.F., and Mackey, B.E. 1997. Toxicity of carbonyl sulfide to stored product insects. J. Econ. Entomol. 90, 832-836. 

Ankersmit, H.A., Tennent, N.H. and Watts, S.F. (2005) Hydrogen sulfide and carbonyl sulfide in the museum environment-Part 1. Atmospheric Environment, 39, 695-707. 

Organic constituents that may be found in ppb levels in WP/F smoke include methane, ethylene, carbonyl sulfide, acetylene, 1,4-dicyanobenzene, 1,3-dicyanobenzene, 1,2-dicyanobenzene, acetonitrile, and acrylonitrile (Tolle et al. 1988). Since white phosphorus contains boron, silicon, calcium, aluminum, iron, and arsenic in excess of 10 ppm as impurities (Berkowitz et al. 1981), WP/F smoke also contains these elements and possibly their oxidation products. The physical properties of a few major compounds that may be important for determining the fate of WP/F smoke in the environment are given in Table 3-3. 

Watts, S.F. (2000) The mass budgets of carbonyl sulfide, dimethyl sulfide, carbon disulfide and hydrogen sulfide. Atmos. Environ. 34, 761-779. 

A.J. Colussi, F.-Y. Leung, M.R. Hoffmann, Electronic spectra of carbonyl sulfide sulfur isotopo-logues. Environ. Chem. 1 (2004) 44 8. 

F.Y.T. Leung, et ah. Isotopic fractionation of carbonyl sulfide in the atmosphere Implications for the source of background stratospheric sulfate aerosol, Geophys. Res. Lett. 29 (10) (2002), doi 10.1029/2001GL013955. 

Elhott S., Lu E., and Rowland F. S. (1987) Carbonyl sulfide hydrolysis as a source of hydrogen-sulfide in open ocean seawater. Geophys. Res. Lett. 14(2), 131 — 134. 

Photolysis of OFj in the presence of carbonyl sulfide/dioxygen mixtures results in the formation of F,SO and CO. If, however, irradiation is continued after total conversion of the COS, the products SOF, SO,F, COF, CF3OF and (CF3),0, were formed [1925]. 

S. Elliot, E. Lu, F.S. Rowland (1989). Rates and mechanisms for hydrolysis of carbonyl sulfide in natural waters. Environ. Sci. Technol., 23,458-461. 

Hanst, P.L., L.L. Speller, D.M. Watts, J.W. Spence, and F.M. Miller, Infrared measurements of fluorocarbons, carbon tetrachloride, carbonyl sulfide, and other atmospheric trace gases. Air Pollution Control Assn J 24, 12, 1220, 1975. 

Sandalls, F.J., and S.A. Penkett, Measurements of carbonyl sulfide and carbon disulfide in the atmosphere. Atmos Environ 11, 197, 1977. 

Fig. 210. Preparation of carbonyl sulfide, a) manometer-type flowmeter h) safety valve o) reaction vessel d) reaction tube, 400 mm. long and 25 mm. I.D., filled with pea-sized pieces of pumice, the top end wrapped with a water-cooled lead coil and closed with a rubber stopper e) U tube with copper tumii s /) wash bottle with 33% NaOH, cooled with ice water (f) traps H) trap cooled with liquid nitrogen, preceded by a tube constriction for sealit off.

Watson, W. W. (1924) Sp>ectrum of water vapKJur. Astrophysical Journal 60, 145-158 Watts, S. F. (2000) The mass budgets of carbonyl sulfide, dimethyl sulfide, carbon disulfide and hydrogen sulfide. Atmospheric Environment 34, 761-779 Wayne, R. R, I. Barnes, J. P. Burrows, C. E. Canosa-Mas, J. Hjorth, G. Le Bras, G. K. Moortgat, D. Perner, G. Poulet, G. ResteUi and H. Sidebottom (1991) The nitrate radical Physics, chemistry, and the atmosphere. Atmospheric Environment 25A, 1-203 Wayne, R, P, (1994) Singlet oxygen in the environmental sciences. Research on Chemical Intermediates 20, 395-422... 

COS removal. Propylene produced from cracking plants will contain carbonyl sulfide (COS). When treating propylene to produce a polymer-grade product, one has to meet a stringent sulfur specification. If COS is reported in propylene product, raise the temperature of lean amine to the scrubber 10°F. This usually eliminates the problem. 

Which of the following species will not have permanent dipole moments (a) Hydrogen cyanide, HCN (b) Carbonyl sulfide, OCS (c) Phosphorus pentachloride, PCI5 (d) Trimethylamine, N(CH3)3 (e) Boron trifluoride, BF3 (f) Diborane, which has the following structure ... 

A mixed cobalt-iron carbonyl sulfide 238) is discussed in Section F, 1, a. 

Orbach, H. K., and Selleck, F. T., 1996, The Effect of Carbonyl Sulfide on Ethanolamine Solutions, unpublished paper, by permission of Fluor Daniel. 

As stated earlier, carbonyl sulfide and carbon disulfide hydrolyze fairly readily at temperatures in the range of 600° to 7(X)°F in the presence of water vapor and an active Claus catalyst. It is therefore advantageous to design the first catalytic converter for operation at this temperature level if high conversion efficiency is required and if substantial quantities of caibonyl sulfide and carbon disulfide are present. However, this results in inefficient operation of the first converter with respect to the Claus reaction, and installation of a third converter may be desirable to compensate for this loss in efficiency. If air pollution conirol regulations require high conversion efficiency, it is usually economical to use only two catalytic converters, and then remove residual sulfur compounds in a tail gas treating unit. 

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