Cas号7439-88-5分子式Ir分子量192.22产品牌号III化学成分(%)铱含量:≤99.9999.95杂质含量:Pt≤0.0030.02Pd≤0.0010.02Rh≤0.0030.02Au≤0.0010.02Ag≤0.0010.005Cu≤0.0020.005Ni≤0.0010.005Fe≤0.0020.01Al≤0.0030.005Pb≤0.0010.005Sn≤0.0010.005Si≤0.0030.005杂质总量:≤0.010.05)