海绵铂150000元/kgCas号7440-06-4分子式Pt分子量195.08别名铂黑，铂品级GradeIIIIII铂含量不小于，%99.9999.99999.95杂质含量不大于，%Pd0.0030.00030.02Rh0.0030.00010.02Ir0.0030.00030.02Au0.0030.00010.01Ag0.0010.00010.005Cu0.0010.00010.005Fe0.0010.00020.005Ni0.0010.00010.005Al0.0030.00030.005Pb0.0020.00010.005Mn0.0020.00010.005Cr0.0020.0010.005Mg0.0020.0010.005Sn0.0020.0010.005Si0.003--0.005Zn0.002--0.005Bi0.002--0.005杂质总量不大于Total0.010.0010.05)