Yellow powder

Composition

Description

It is sometimes called "Fulminating powder". The mixture burns three times quicker than common black powder. The compounds are sometimes molten together, which appears to be a very dangerous operation.

 

Source: 
rec.pyrotechnics, post by The Silent Observer <silent1@ix.netcom.com. It comes from a text of 'Samuel Guthrie' written in 1831. More about this mixture can be found in Davis[10], page 30 and 31.