Oxygen systems

Analysis We want to disconnect any of the bonds to the common atoms to give us a simple six-membered ring. We can best disconnect bond a as it is part of a 1,3-di oxygenated system ... [Pg.129]

The superoxides compare well with a combination of Hquid oxygen or gaseous oxygen systems and a CO2 scmbber, eg, LiOH. Heat release is somewhat less than the combination system, and the volume of superoxides which is required is roughly equivalent to that of lithium hydroxide. [Pg.488]

The substance named first represents the positive electrode the substance named second is the negative electrode. In all cases except for air(oxygen) systems, the active electrode material is the oxide or the hydroxide of the named species. [Pg.542]

TABLE 2-235 Liquid-Vdpor Equilibrium Data for the Argon-Nitrogen-Oxygen System... [Pg.262]

Nitrobacter, an aerobic bacterium, can materially depress pH by oxidizing nitrite (NO2 ) to nitrate (NOa ), in effect producing nitric acid. Acidity may increase until pH is between 3 and 5. Such bacteria require high concentrations of oxygen and cause problems only in oxygenated systems. [Pg.123]

Ensure tliat proper fresh ah ventilation is provided in oxy-fuel gas welding and eutting operations. Ensure tliat high-pressure oxygen systems are designed, eonstmeted, installed and eommissioned by eompetent people with speeialized knowledge of the subjeet. [Pg.302]

H. T. Kohlbrand, Case History of a Deflagration Involving an Organic Solvent/Oxygen System Below its Flash Point, Paper presented at AlChE Loss Prevention Symposium, San Diego, Aug. 1990. [Pg.352]

Table 14.15 Intermediate phases formed by ordering of defects in the praseodymium-oxygen system...

The enol ether double bond contained within the ds-fused dioxa-bicyclo[3.2.0]heptene photoadducts can also be oxidized, in a completely diastereoselective fashion, with mCPBA. Treatment of intermediate XXII, derived in one step from a Patemo-Buchi reaction between 3,4-dimethylfuran and benzaldehyde, with mCPBA results in the formation of intermediate XXIII. Once again, consecutive photocycloaddition and oxidation reactions furnish a highly oxygenated system that possesses five contiguous stereocenters, one of which is quaternary. Intermediate XXIII is particularly interesting because its constitution and its relative stereochemical relationships bear close homology to a portion of a natural product known as asteltoxin. [Pg.321]

The Plutonia-Oxygen and Uranium-Plutonium-Oxygen Systems ... [Pg.125]

Enthalpy of fusion, Pu-oxygen systems 129 Enthalpy of stabilization, alkali... [Pg.459]

Reactor safety analysis, thermodynamics of Pu-oxygen system 109-21... [Pg.472]