On Sun, Oct 23, 2011 at 9:12 AM, Peter Heckert <[email protected]> wrote: > Nickel Nano powder is made like this: > > Nickel is oxidized. The nickel oxide is milled. > The Nickel oxide powder is reduced to nickel in hydrogen athmossphere under > high pressure and high temperature. > Why doesnt this sometimes explode?
It will! Read the safety and risk statements: http://www.sigmaaldrich.com/catalog/ProductDetail.do?D7=0&N5=SEARCH_CONCAT_PNO|BRAND_KEY&N4=577995|ALDRICH&N25=0&QS=ON&F=SPEC http://goo.gl/vENfr Note that AR does not use nanopowder according to his patent ap for the US. Particle size appears to be on the order of 10 micrometers, two orders of magnitude larger than this manufacturer's guaranteed size. The curious part to me are the kernels or protrusions on his particles. If his reaction occurs with IRM at the crystalline discontinuities, I would think they would be plentiful in this geometry. Of course, all this has been discussed before. Nothing new under the sun. T
