U.S. Public Health Service. Public Health Reports. Reprint 823, Del 1U.S. Government Printing Office, 1923 |
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U.S. Public Health Service. Public Health Reports. Reprint 823, Del 2 United States. Public Health Service Uten tilgangsbegrensning - 1923 |
U.S. Public Health Service. Public Health Reports. Reprint 823, Del 3 United States. Public Health Service Uten tilgangsbegrensning - 1923 |
U.S. Public Health Service. Public Health Reports. Reprint 823, Del 4 United States. Public Health Service Uten tilgangsbegrensning - 1923 |
Vanlige uttrykk og setninger
active agent actual mechanism amenable to experimental Biilmann biological oxidation CH₂ Chem chlorine constant Dairy Division Division of Chemistry electrode measurements electrode potential electrons results elements analogous equation 12 exchange of electrons experimental test express the equilibrium Fe ² Fe e Fe Fe is capable ferric chloride ferric iron ferrous and ferric Ferrous chloride fugacity H₂ half-cell hydrion concentration hydrogen ions hydrogen pressure Hygienic Laboratory indigo white indigotin ions Fe K₁ H+]² K₂ MANSFIELD CLARK methylene mixture nF Ox noble metal normal hydrogen electrode O₂ Oxidation and reduction oxidation-reduction intensity oxidation-reduction reaction oxidizing or reducing oxygen or hydrogen paper potential differences Public Health Reports Public Health Service quinone ratio of reductant reducing agent reducing tendency reductant to oxidant Reduction potentials removal of oxygen reversible reaction RT nF solution exists largely standard selected studies system be formulated terms oxidation United States Public withdrawal of electrons zero ᎡᎢ
Populære avsnitt
Side 4 - If required to define the terms we can say that oxidation may be regarded as the withdrawal of electrons from a substance with or without the addition of oxygen or elements analogous to oxygen; or as the withdrawal of electrons with or without the withdrawal of hydrogen or elements analogous to hydrogen.
Side 7 - ... be the case whatever the component might be that is chosen as the common constituent of two equilibria brought to the simultaneous states. We still have use for [e] however. ELECTRODE POTENTIALS. An evidence of some actual state of which [e] is representative is found in the fact that a noble metal placed in a solution containing an oxidation-reduction system acquires an electron charge increasing in intensity with increase of the reducing tendency, the electron fugacity, or, as we choose to...
Side 2 - Accordingly, biological studies were partially suspended and there was begun a study af the potentials of various dyes in equilibrium with their reduction products — systems which can be used as indicators of oxidation-reduction intensity in a manner comparable to the use of acid-base indicators in hydrogen ion studies. A preliminary paper (Clark 1920) gave a brief description of the system méthylène blue-methylene white and of the system indigotin sulfonate-rcduccd indigotin sulfonate.
Side 4 - Fe +e^Fe (2) When (2) proceeds from right to left, an oxidation is said to be taking place. When (2) proceeds from left to right, a reduction is said to be taking place. In general, the addition of electrons results in the reduction of a substance, whereas the withdrawal of electrons results in its oxidation. Thus has the breach in the original systematic classification been widened until there has entered a meaning quite foreign to the original terms "oxidation" and ''reduction." There have been...
Side 6 - ICH normal is of the order of 10~27 atmosphere, a value quite beyond the reach of direct measurement. It would therefore be ridiculous to use (3) in an actual experimental test. Some other formulation might be sought, but it is evident that any formulation could be recast into terms of (3) . No further...
Side 8 - This ratio, as we have already seen, permits the arrangement of different systems in their relative positions on a scale. Now it is impracticable to determine the single potential differences represented by E, but it is eminently practicable to set up two halfcells and to measure the difference between the potential differences at the two electrodes. One of these half-cells may be selected...
Side 3 - In the progressive action of oxygen the products were known as higher and higher states of oxidation. The reverse process was then looked upon as leading to lower states, to reduced states, and was termed reduction. "Reduction," however, was a term applied not only to the removal of oxygen but also to the addition of hydrogen.