Following phosphorus diffusion, the samples were soaked in an HF solution to remove the SiO2 caps as well as the layer of phosphorus oxide.
The various polymeric forms of phosphoric acid are also prepared by hydration of phosphorus oxides.
The phosphorus network is depolymerized by the content of vanadium oxide, but phosphorus ions always contribute to the glass network, interposing to vanadium polyhedra.
The doping effect of phosphorus ions in titanium oxide accounts for the improvement of high temperature oxidation of Ti 50Al.
These important early clues to a possible immune mechanism of ABD were dis regarded by later investigators, who used the term "chemical" to refer to a more traditional dose-dependent inhalational intoxication akin to those of "phosgene, nitric oxide, and phosphorus oxychloride" (Sterner and Eisenbud 1951).
The objective of this work is to study methylation of 4-methylbiphenyl (4-MBP) with methanol over modified ZSM-5 catalysts under fixed-bed down-flow conditions, especially the effects of zeolite structure, SiO2/Al2O3 ratios of ZSM-5, metal oxide modification, phosphorus modification and hydrothermal treatment.
This is because, although the diffusion of phosphorus is very slow in an oxide layer, the phosphorus atoms actually react with the silicon oxide and form a mixed glass layer incorporating the phosphorus [18].
The mobility of phosphorus incorporated as a mass marker into tantalum anodic oxide films was investigated by means of ion microprobe mass analysis.
Many other compounds of phosphorus are used.
PTH interferes with renal tubular phosphorus reabsorption, causing an enhanced renal excretion of phosphorus.
His work on the acids of phosphorus led him to discover phosphorus oxychloride.
