@Alexander99 You should put them in capsules. I did some research a while back, and it would be best to buy a capping device, such as a "Cap M Quik" to make your pills. Go to body building forums and look at how to do this, I recall it was recommended to mix corn starch with the DNP, but I don't recall how many mg of each you need.
I do recall that you're going to want to dry your powder, DNP ships wet because it is flammable. You can lay out your powder for like a day in the sun and it should be enough.