Chlorate Black Powder
Ok here's the deal. Standard black powder is 75% KNO3, 15% C, and 10% S, all by weight. Now chlorate BP uses a chlorate, in my case potassium chlorate (KClO3), in place of the KNO3. Basically just replacing the oxidizer. Now the problem here is that while regular BP will not ignite on its own, the chlorate BP just might. The sulfur can react with the chlorate in an unpleasant manner, and this may then cause spontaneous ignition when you least expect it. Well it's always when you least expect it, isn't it? And even if there is no spontaneous ignition, the chlorate BP is definitely sensitive. So be careful with this stuff. Or better yet, don't make it.
Well that's the little intro and warning bit. Now onto the fun stuff.
All I really have to say is that it burns quite nicely and is quite powerful. Good to use for a variety of things, but keep in mind the dangers. I definitely would not suggest doing this.
Here's are some pictures of it burning.