Supplier Page from Thermo Fisher Scientific for Tantalum powder, -325 mesh, Puratronic:r, 99.97% (metals basis), Nb 50ppm
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethoxymethylenemalononitrile, 98% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific