Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Relativism

Distribution of the relativ body force (RF) on 1127 bolts determined by the magnetic method and 42 bolts out of this number found faulty by the DIN method. [Pg.8]

Un puits stratigraphique peu profond est un puits, relativement peu profond, fore en vue de renseigner sur les caracteristiques g ologiques locales, c est-a-dire la structure, le facies, la geochimie des couches, etc. II n a pas pour objet immediat normalement I exploration d accumulations de petiole ou de gaz. [Pg.54]

In this article it will be argued that the classification of the elements is an objective feature of the world and not open to conventional choice and relativism. It will also be argued that the element helium belongs objectively and most naturally either to the alkaline earths or the noble gases regardless of whether such a question may be settled at present.8... [Pg.133]

Aus Amino-alkansauren mit N-Alkyl- oder N-Aryl-Substituenten werden leichter losli-che Komplexe erhalten2. 4-Alkylamino-butansauren3 werden durch Lithiumalanat relativ leicht zu den entsprechenden Pyrrolidinen cyclisiert. Zur selektiven Reduktion der Carboxy-Gruppe von N-acylierten Aminosauren ist Diboran geeignet4 5 z.B.6 ... [Pg.163]

G) Inverse Zugabe der zur Reduktion der Oxo-Gruppe notwendigen Reduktionsmittel-Menge in der Kalte. Da die Borhydride in Alkoholen, besonders in Methanol relativ schnell zersetzt werden, nimmt man meist einen 100%-igen UberscbuB, also zwei Hydrid-Aquivalente... [Pg.317]

Durch Lithiumalanat/Aluminiumchlorid-Misdiungen wird auch das THF relativ schnell zersetzt, so daB man in diesen Fallen in Diathylather reduziert8. [Pg.424]

Aldehyde lassen sich relativ einfach aus Carbonsauren herstellen, wenn man die Cal-ciumsalze der Carbonsaure und der Ameisensaure am besten unter Durchleiten von Koh-lendioxid trocken destilliert (Reaktion nach Piria s.ds. Handb., Bd. VII/1, S. 277ff.). [Pg.560]

In der geteilten Zelle wird Wasserstoff erzeugt, der in situ das Nitril hydriert (eine relativ geringe Stromdichte ist vorteilhaft), wobei Wasser die Imin-Zwischenstufe zum Bcnzaldehyd2 hydrolysieren kann, der nicht weiter angegriffen wird. [Pg.578]

Das relativ stabile Triphenyl-cyclopropenyl-Kation wird mit Guanidinium-perchlorat als Leitsalz zum 1,2,3-Triphenyl-cyclopropen (12% d.Th.) reduziert4. [Pg.588]

In ncutraler waGriger Losung (Britton-Robinson-Puffer, pH 7) kann l-Methyl-4-cyan-chinolinium-perchlorat bei —1,5 V (vs. SCE) zum I-Methyl-4-cyan-l,4-dihydro-chinolin reduziert werden. Bei —0,7 V bildet sich das relativ stabile Neutral-Radikal5. [Pg.593]

Bei relativ niedrigem Kathodenpotcntial wird Anthracen zum Anion-Radikal reduziert (DMF/Tetrabutyl-ammoniumjodid, Ouecksilber), das dann verschiedene Sulfone reduktiv spalten kann . [Pg.634]

Die Reduktion der relativ leicht herstellbaren N-Nitroso-Verbindungen cyclischer Amine fiihrt ebenfalls zu Hydrazinen, wobei teilweisc N-N-Spaltung zum cyclischen Amin eintritt7 z. B. ... [Pg.696]

The meaning of the surface excess is illustrated in Fig. 1, in which the solid line represents the actual concentration profile of an adsorbate i, when the bulk concentration of i in the phase a (a = O or W) is c . The hatched area corresponds to be the surface excess of i, T,. This quantity depends on the location of the dividing surface. On the other hand, the experimentally accessible quantity should not depend on the location of the artificially introduced dividing surface. The relative surface excess, which is independent of the location of the dividing surface, is defined by relativizing it with respect to those of certain reference components. In oil water interfaces, the mutual solubility of solvents can be significant. The relative surface excess in Eq. (3) is then related to the surface excesses through... [Pg.121]

Media Concentration Relativ e Time Spent Slope Factor Blood Lead ... [Pg.619]


See other pages where Relativism is mentioned: [Pg.627]    [Pg.711]    [Pg.2534]    [Pg.133]    [Pg.10]    [Pg.22]    [Pg.78]    [Pg.154]    [Pg.295]    [Pg.383]    [Pg.576]    [Pg.583]    [Pg.586]    [Pg.122]    [Pg.8]    [Pg.9]    [Pg.11]    [Pg.11]    [Pg.21]    [Pg.27]    [Pg.29]    [Pg.34]    [Pg.52]    [Pg.60]    [Pg.71]    [Pg.75]    [Pg.85]    [Pg.95]    [Pg.129]    [Pg.131]    [Pg.153]    [Pg.16]    [Pg.20]    [Pg.22]    [Pg.59]    [Pg.67]    [Pg.96]   
See also in sourсe #XX -- [ Pg.3 , Pg.4 , Pg.5 , Pg.6 , Pg.10 , Pg.17 , Pg.19 , Pg.26 , Pg.28 , Pg.62 , Pg.64 , Pg.85 , Pg.96 , Pg.97 , Pg.110 , Pg.118 , Pg.120 , Pg.124 ]

See also in sourсe #XX -- [ Pg.283 ]

See also in sourсe #XX -- [ Pg.22 , Pg.28 , Pg.30 ]

See also in sourсe #XX -- [ Pg.189 ]




SEARCH



Cultural relativism

Ethical relativism

RELATIVISM CONSTRAINED

Realism and relativism

Relativism problem

Relativism, constructivism

Relativism, philosophical

© 2024 chempedia.info