In article , Scopata Fuori
wrote:

I mean how
harmless can it be if it reacts with metal?


That's what I say, too. Drink beer, not water. Look what it does to iron!

Touche. However, the effects of ingesting lime sulfur are clearly more
harmful than the effects of inhaling water vapor. Of the organic
sprays, this is one of the most dangerous.

Look at the MSDS:
http://www.montereychemical.com/msds...meSulSol-m.pdf