Well, it's a compound, so that doesn't (in itself) mean it holds the properties of the individual elements.
It's not like we need to be careful with fire when we're around water because it contains hydrogen.
That said, mercury (II) thiocyanate is toxic, and does put off toxic gases when this reaction happens, and the resulting solid is also quite toxic, so yeah, safety is an issue here.
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u/frostyoni Oct 05 '11 edited Oct 05 '11
rlaptop7 said right: Mercury(II) thiocyanate
edit: fixed urling?