nanopowder, <25 nm particle size, 99.7% trace metals basis
powder, 99.8% trace metals basis
powder, −325 mesh, ≥99% trace metals basis
nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis
ReagentPlus®, ≥99%
puriss., meets analytical specification of Ph. Eur., BP, USP, 99-100.5%
United States Pharmacopeia (USP) Reference Standard
NIST® SRM® 1898, nanomaterial
