Reagent notation: meaning of dash(-) and line(|) or slash(\) in reagents I've seen a lot of reagents which have a slash between two compounds, such as Lindlar's catalyst which is $\ce{H2}$ along with $\ce{Pd|BaSO4}$. I know that the sulphur is a poison here but in general, what does the \ or | mean? And is it supposed to be a \ or a |? Are both equivalent? Does it mean &quot;and&quot; or &quot;or&quot; or something else?
$\ce{Cr2O3-Al2O3/Mn2O3}$, Also what does the dash mean here? In?
EDIT: This in the context of the reagents mentioned above arrows in organic chemistry. If I'm not wrong,  $\ce{Cr2O3-Al2O3/Mn2O3}$ is used to convert hexane to benzene by cyclization followed by aromatization.
The '|' in $\ce{Pd|BaSO4}$ implies that the reaction is taking place in the presence of $\ce{Pd}$ as a metal catalyst. This metal provides surface area for reaction to occur.
Also '/' in $\ce{Cr2O3-Al2O3/Mn2O3}$ means that $\ce{Cr2O3}$ can be used in combination with either $\ce{Al2O3}$ or $\ce{Mn2O3}$.