High-Temperature Decomposition of

Up to now, the most promising results were obtained with Co insertion in B sites of lanthanum perovskite materials [11]. While the structural properties are preserved under reaction conditions up to 900 °C under hmnid atmosphere. 

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Burcat A, Skinner G B, Crossley R W and Scheller K 1973 High temperature decomposition of ethane Int. J. Chem. Kinetics 5 345-52... 

Boron trichlorides are highly reactive, toxic, and corrosive these ttihaUdes (BCl, BBr, BI ) react vigorously, even explosively, with water. High temperature decomposition of BX can yield toxic halogen-containing fumes. Safe handling, especially of BCl, has been reviewed (11,80). 

Westinghouse A proposed thermochemical process for decomposing water to oxygen and hydrogen by electrolysis, coupled with the high-temperature decomposition of sulfuric acid ... 

During the ultimate stage, mutagenesis, only dry gas methane was stable. It was originated from previously formed liquid hydrocarbons (Figure 1) mainly due to high temperature decomposition of kerogen. 

SOURCE - High temperature decomposition of arsenic trioxide. Also used in some industrial chemical processes. 

The end product, EU2O2SO4, has been identified completely reliably, but the presence of Eu20(SC>4)2 was inferred only by chemical means. These workers tend to disagree ever the complete oxidation of E11SO4 to Eu2(S04)3. The high temperature decomposition of EU2O2SO4 may possibly be represented by analogy [350] as... 

Other ways of obtaining initiator radicals include high-temperature decomposition of the monomer and photochemical processes, often involving a ketone as a photosensitizer. Addition of the initiator radicals to monomer produces a growing-chain radical that combines with successive molecules of monomer until, in some way, the chain is terminated. Addition to an unsym-metrical monomer can occur in two ways. Thus for ethenylbenzenes ... 

Most gas calculations are just applications of the ideal gas law in which three of the variables P, V, T, and n are known, and the fourth variable must be calculated. For example, the reaction used in the deployment of automobile air bags is the high-temperature decomposition of sodium azide, NaN3, to produce N2 gas. (The sodium is then removed by a subsequent reaction.) How many liters of N2 at 1.15 atm and 30°C are produced by decomposition of 145 g of NaN3 ... 

Carbon fibers are the most rigid and strongest of commonly used reinforcements. They are produced by the pyrolysis (high-temperature decomposition) of natural and synthetic materials, such as rayon, polyacrylonitrile (PAN), and pitch (the tacky residue left from the distillation of petroleum or coal tar). Carbon fibers are commercially available in a variety of formats, including single strands and bundles (known as tows). They are midway in density between glass and polymer fibers and are the most expensive of commonly used reinforcements. 

Bibbo, G.S., Benson, P.M. and Pantano, C.G., (1991), Effect of carbon monoxide partial pressure on the high-temperature decomposition of Nicalon fibre , J. Mater. Sci., 26(18), 5075-5080. 

High-temperature decomposition of sulphuric acid is a major step for sulphur-based thermochemical cycles such as hybrid sulphur and sulphur-iodine. It is generally also the most energy-intensive, so that the overall heat requirement for this step can determine whether a particular decomposition reactor or flow sheet design is practical. 

We recently reported (3) that ultrasonic irradiation of alkaline oxic aqueous solutions of bivalent sulfur, S(-II), at 20 kHz resulted in the rapid oxidation of S(-II). The observed distribution of the oxidation products was similar to that reported for y-radiolysis of S(-II). The ultrasound-induced oxidation of S(-II) in alkaline solutions was attributed to the reaction of HS" with OH radicals (3). These radicals form during ultrasonic irradiation of water as a result of the high-temperature decomposition of water vapor inside the hot cavitation bubbles (1,2). Although the experimental results were qualitatively consistent with our proposed mechanism, some questions remained unanswered concerning the amount of OH released into the aqueous phase and the existence and relative importance of additional oxidants. 

O2 from other chemical species in the high-temperature decomposition of H2SO4. This separation has... 

Figure 3. Equilibrium composition for the high temperature decomposition of reaction 4...

Reduction of the nitrogen uptake of molybdenum ribbons after CO desorption has been reported, and attributed to high temperature decomposition of the CO on the ribbon (89), but there is no detailed evidence to support this view. 

Vapors of high melting metals and inorganic materials can be produced in situ by evaporation, either from resistively heated filaments of the material itself or else from bulk crucibles. These are all standard procedures 122). In a variant of this approach, permanent gases have been evolved by high temperature decomposition of a suitable solid, as for example H2 from ZrH2, 02 from CuO 44d), or from oxygen dissolved in silver 123), and CO from Mo(CO)a 124). In all these it is... 

High-temperature decomposition of AT-substances in fuels of motor vehicles and in the coal, decomposition of organic substances... 

Wyman, J. F., Povaznik, M., and Serve, P. (1987). High temperature decomposition of military specification L-23699 synthetic aircraft lubricanLs. J. Fire Set. 5, 162-177. 

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