Our Mercury metal is 99.9995% and comes with a Certificate of Analysis upon request. One pound is our smallest offering but get in touch with us for larger amounts and bulk discounts on all of our metals. PLEASE NOTE: There is a ban on exporting Mercury to locations outside of the USA as of January 1, 2013. Mercury, as all of our metals, is legal to own. We provide an MSDS with every order. Please learn about the metal before purchasing.