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Energy specific chemical

Key contents of a purchase profile report for a specific chemical are identity, location, and capacity of primary vendors expected additions or deletions of capacity and their timing captive use/merchant supply status of each vendor pricing history pricing induences (feedstock, energy, etc) demand by use and anticipated growth and demand in the purchaser company up to five or ten years ahead. [Pg.538]

The liquid-liquid interface is not only a boundary plane dividing two immiscible liquid phases, but also a nanoscaled, very thin liquid layer where properties such as cohesive energy, density, electrical potential, dielectric constant, and viscosity are drastically changed along with the axis from one phase to another. The interfacial region was anticipated to cause various specific chemical phenomena not found in bulk liquid phases. The chemical reactions at liquid-liquid interfaces have traditionally been less understood than those at liquid-solid or gas-liquid interfaces, much less than the bulk phases. These circumstances were mainly due to the lack of experimental methods which could measure the amount of adsorbed chemical species and the rate of chemical reaction at the interface [1,2]. Several experimental methods have recently been invented in the field of solvent extraction [3], which have made a significant breakthrough in the study of interfacial reactions. [Pg.361]

Chapter 12. The forces which act on the atoms to maintain them in certain equilibrium positions are associated with changes in bond lengths and angles, and, furthermore in the present application, torsional angles around specific chemical bonds. Once a potential function has been established the so-called steric energy of the molecule can, in principle, be evaluated. [Pg.336]

We must remember too that all the gradients of ions (or molecules) across membranes, represented sometimes by electrical potentials, are bulk sources of energy, not of specific chemical use but are of general value in uptake/rejection and signalling (see Chapter 9). [Pg.173]

The penetration depth of waves is defined as the distance from the surface of the material at which the power drops to 1 /e from its value at the surface. The penetration depth of microwaves is equal to 15 mm for water at 20 °C. The electromagnetic energy transfer is ensured by matched alumina windows. The propagated mode within the reactor is theoretically the TEn mode. The interest of this system is to make very specific chemical reaction such as oxidation in aqueous medium under critical conditions. [Pg.28]

The minimum ignition energy (MIE) is the minimum energy input required to initiate combustion. All flammable materials (including dusts) have MIEs. The MIE depends on the specific chemical or mixture, the concentration, pressure, and temperature. A few MIEs are given in Table 6-4. [Pg.248]

The "classical" theory of nucleation concentrates primarily on calculating the nucleation free energy barrier, AG. Chemical interactions are included under the form of thermodynamic quantities, such as the surface tension. A link with chemistry is made by relating the surface tension to the solubility which provides a kinetic explanation of the Ostwald Step Rule and the often observed disequilibrium conditions in natural systems. Can the chemical model be complemented and expanded by considering specific chemical interactions (surface complex formation) of the components of the cluster with the surface ... [Pg.224]

This procedure is an adaptation of that described by Emmons for the preparation of oxaziranes from imines using peracetic acid. Other procedures which may be more useful for oxazirane preparation in specific instances are the oxidation of imines with iw-chloroperbenzoic acid and the reaction of aldehydes or ketones with hydroxylamine 0-sulfonic acid in alkaline solution. 2-<-Butyl-3-phenyloxazirane has also been prepared by photolysis of a-phenyl-N-f-butylnitrone (a general reaction of considerable theoretical interest since it represents direct conversion of electromagnetic energy to chemical energy) and in low yields by ozonoly-sis of N-f-butylbenzaldimine. ... [Pg.90]


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See also in sourсe #XX -- [ Pg.40 ]




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