Yes. However, buying chemicals has its own pitfalls. There are different grades (Reagent, lab, purified, USP, technical, and more) and different guarantees of mesh size.
Originally Posted by BakerAndBadger
Having said that, I've used technical grades of CrO2 before and they worked fine. Technical is for general industry use.
Something made for pigments should be fine - see if you can get an assay of it - sometimes the company has one - to determine the mesh size. If you can't, then use it and see what happens. It won't turn you into a newt... but if it does, you will get better.
You can mix it with several carriers - just about anything to make it slimy (<-- technical description). I use mineral oil. You only need to make a very small amount. A couple of grams will easily cover a paddle or two.
Inventor of the world's first safety vibrating Kamisori with night light. Go to http://badgerandblade.com/vb/showthread.php/299465-A-milder-Kamisori: Inventor of the Weckisori - (thanks sychodelix)