Must it really be the sodium salt? The sodium salt is very uncommon. The potassium salt, on the other hand, can easily be obtained and is available,
even on eBay. It is a fairly innocuous salt, and you need quite extreme conditions to release the cyanide as free acid or as free ion.
The same is true for the ferricyanide. The potassium salt can be purchased easily, while the sodium salt is very hard to find (I never saw a place
where you an buy it). |