... Tellurium is above 99.999%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se, Si & Sn is bellow ... Tellurium is above 99.9999%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se, Si & Zn is bellow ... Tellurium is above 99.99999%. The total content of Ag, Al, Cd, Cu, Fe, Mg, Ni, Pb, Se & Zn is bellow 0 ...