(a.) Of, pertaining to, or containing, palladium; -- used specifically to designate those compounds in which palladium has a lower valence as compared with palladic compounds.
Example Sentences:
Palladium
Definition:
(n.) Any statue of the goddess Pallas; esp., the famous statue on the preservation of which depended the safety of ancient Troy.
(n.) Hence: That which affords effectual protection or security; a sateguard; as, the trial by jury is the palladium of our civil rights.
(n.) A rare metallic element of the light platinum group, found native, and also alloyed with platinum and gold. It is a silver-white metal resembling platinum, and like it permanent and untarnished in the air, but is more easily fusible. It is unique in its power of occluding hydrogen, which it does to the extent of nearly a thousand volumes, forming the alloy Pd2H. It is used for graduated circles and verniers, for plating certain silver goods, and somewhat in dentistry. It was so named in 1804 by Wollaston from the asteroid Pallas, which was discovered in 1802. Symbol Pd. Atomic weight, 106.2.
Example Sentences:
(1) The coverslips were dehydrated in ethanol, critical point dried with CO2, and coated with gold-palladium.
(2) Acylation with benzoyl chloride and triethylamine in acetonitrile followed by hydrogenolysis with 10% palladium on carbon in trifluoroacetic acid gives O-benzoyl-L-serine, isolated as the hydrochloride salt.
(3) The effect of various fuel additives on the ability of platinum-palladium catalytic converters to remove the carbon monoxide and hydrocarbon components of automotive exhaust has been examined.
(4) The teeth were air dried, mounted on stubs, sputter-coated with gold-palladium and examined under SEM.
(5) Cell spreading was limited since focal contacts were restricted to the palladium.
(6) The device limits the amount of oxygen entering with the sample to a maximum of 2%, which is rapidly removed by reacting with hydrogen in the presence of a palladium catalyst.
(7) For palladium complexes this line coincides with the location of ligands according to their ability to draw off the electron density from the central atom while in case of platinum complexes it has an opposite course of relationship for platinum and palladium complexes, points to a different mechanism of their interaction with the enzyme.
(8) 2-Ethynyl-4,5-diphenylthiazoles were synthesized by the palladium catalyst cross-coupling reaction of 2-iodo-4,5-diphenylthiazole with monosubstituted acetylenes.
(9) 470 patients were additionally tested with a metallic palladium disc.
(10) For example, a post-consumer automotive catalyst has a concentration of platinum group metals (like platinum, palladium and rhodium) more than 100 times higher than in natural ores.
(11) At the end of the synthesis the Alloc group was selectively removed by palladium-catalyzed hydrostannolysis and biotin coupled to the epsilon-amino group of Lys7.
(12) The palladium-silver alloy had inhomogeneous crystallites.
(13) During the welding, a small amount of hydrogen was released from the titanium which, over a period of 2 to 4 weeks, was absorbed by the palladium plates in the capacitor.
(14) Thin sections of specimens that had been prepared for scanning electron microscopy showed that the gold-palladium coating was desposited directly on the indented surface of the lipid core of lipolyzed chylomicrons fixed at pH 7.4.
(15) The acidoligands studied according to their inhibition effect can be arranged in the following line: NO2, Cl, Br, SCN, I, which is true both for platinum and palladium compounds.
(16) Palladium-containing amalgam alloys were developed utilizing the atomization method.
(17) Of the 306 workers, 38 had a positive skin prick test to the platinum halide salts; of these, one gave a positive reaction to the palladium salt and six to the rhodium salt.
(18) Carbon contents up to 200 ppm were measured in the case of a high-palladium system.
(19) Twelve single crowns were cast in a silver-palladium alloy by six different casting techniques.
(20) The inferior medullary velum and tela choroidea were removed intact from the fourth ventricle, post-osmicated, dehydrated, critical point dried, coated with palladium-gold and examined in a Cambridge Stereoscan S4 scanning electron microscope.