Cas号7440-18-8分子式Ru分子量101.07钌Ru(%min)99.9999.95杂质含量不大于Impurities(%max)：Pt0.0030.01Pd0.0010.002Rh0.0010.003Ir0.0010.005Au0.0010.005Ag0.00050.001Cu0.0010.001Ni0.0020.005Fe0.0030.02Pb0.0030.01Al0.0010.005Si0.0050.02Total0.010.05)