A sample of cells fixed / stained with osmium tetroxide ( black ) embedded in epoxy resin ( amber ).
22.
However, Alistair Hay, professor of environmental toxicology at Leeds University, told the BBC that osmium tetroxide was " mildly irritant ."
23.
Airborne low concentrations of osmium tetroxide vapor can cause lung congestion and eye damage, and should therefore be used in a fume hood.
24.
After it is dissolved, osmium is separated from the other platinum group metals by distillation or extraction with organic solvents of the volatile osmium tetroxide.
25.
Osmium tetroxide ( OsO 4 ) is a popular oxidant used in the dihydroxylation of alkenes because of its reliability and efficiency with producing syn-diols.
26.
The ultrastructural localization of physodes can be examined through transmission electron microscopy in samples primarily fixed in 2.5 % glutaraldehyde and with postfixation with 1 % osmium tetroxide.
27.
The microstructure of SBS consists of domains of polystyrene arranged regularly in a matrix of polybutadiene, as shown in the mercury from solution, and then stained with osmium tetroxide.
28.
In terms of raw material shopping, this taxol molecule consists of the aforementioned Wieland-Miescher ketone, 2-methyl-3-pentanone, lithium aluminium hydride, osmium tetroxide, phenyllithium, pyridinium chlorochromate, the Corey-Chaykovsky reagent and acryloyl chloride.
29.
It is common practice to perform this reaction using a catalytic amount of osmium tetroxide, which after reaction is regenerated with either potassium ferricyanide or " N "-methylmorpholine " N "-oxide.
30.
An example of syn addition would be the oxidation of an alkene to a diol via a suitable oxidizing agent such as Osmium tetroxide OsO 4 or Potassium permanganate KMnO 4.
