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> The pelleted form is called prilled (uncoated) and is highly
> soluble. Grinding it is IMO a waste of time.
It's also optentially dangerous.
Any trace of organic marerial (ie, sugar, carbon etc) when you're grinding
it and you'll get more than you bargined for.
For a real goof time mix 1 part KNO3 and 2 parts icing sugar.
Dump it in a little pile *outside* away from anythong flamable
and light it. It burns with a neat pink flame and makes copious
amounts of smoke. Lotsa fun.
Richard J. Sexton richard at aquaria_net
Maitland House, Bannockburn, Ontario, Canada, K0K 1Y0 +1 (613) 473 1719