Sulphur flower is ground sulphur raw sulphur. Flowers of sulphur is precipitated out of sulphuric acid. The distinction is subtle, but can be quite deadly if you do pyrotechnics. Flowers of sulphur can be highly acidic and reacts violently with chlorate compounds. --------------------- It's NOT "flowers" it "flour" of sulphur... as in a fine ground powder... think wheat flour as is used to bake bread. _________________________________________________________________ Hotmail: Trusted email with Microsoft’s powerful SPAM protection. http://clk.atdmt.com/GBL/go/196390706/direct/01/

Mark Sims wrote: > Sulphur flower is ground sulphur raw sulphur. Flowers of sulphur is precipitated out of sulphuric acid. > > The distinction is subtle, but can be quite deadly if you do pyrotechnics. Flowers of sulphur can be highly acidic and reacts violently with chlorate compounds. Hmm... what colour would mercury give to the pyrotechnics? Cheers, Magnus