نتایج جستجو برای: cyanides
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Some recent work, no tab ly tha t of Dixon and Elliott , 1 has indicated tha t not all cells and tissues are complete ly cyanide-sensit ive in the sense tha t they reduce their ra te of respiration in the presence of cyanides. Alien ~ has pointed out tha t not all the resp i ra tory exchange in Planaria m a y be inhibited b y cyanides. This has indicated tha t there m a y be other oxidation sys...
A novel protocol for the direct arylthiolation of electron-rich arenes is described. Applying arylsulfonyl cyanides in the presence of catalytic amounts of Pd allows for a straightforward synthesis of diaryl sulfides.
Double metal cyanides (DMCs) are highly active recyclable heterogeneous catalysts for hydroamination of phenylacetylene with 4-isopropylaniline. The best hydroamination yields are obtained with Zn-Co DMCs, especially if the particle size is decreased by a reverse emulsion synthesis technique.
The solid phases of gold(I) and/or silver(I) cyanides are supramolecular assemblies of inorganic polymer chains in which the key structural degrees of freedom-namely, the relative vertical shifts of neighbouring chains-are mathematically equivalent to the phase angles of rotating planar ('XY') spins. Here, we show how the supramolecular interactions between chains can be tuned to mimic differen...
The effect of chronic cyanide exposure in the electroplating sections of three factories employing 36 workers was studied and compared with a control group. The concentration of cyanides to which the workers were exposed was measured. The regression line showing the relationship between thiocyanates in urine and the concentration of cyanides in the air was plotted. Increased percentages of haem...
Ion exchange resins were investigated for the effective recovery of platinum, palladium, and gold from a pregnant cyanide heap leach solution. Screening results indicated that strong-base anion exchange resins proved to be most effective in the recovery of these metal cyanides. Gold was selectively recovered with the use of Minix, while effective recovery of gold, platinum, and palladium over t...
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