金粉         80元/kg

Cas號 7440-57-5  
分子式 Au 
分子量 196.97 
質量標準   
品級Grade                   I            II         III
主金屬含量（%）           99.999        99.99      99.95 
雜質含量不大于（%）
Pt                        0.00005      
Pd                        0.00005       0.005      0.02 
Ag                        0.0003        0.005      0.02
Cu                        0.00005       0.002      0.015
Fe                        0.00005       0.002      0.003
Ni                        0.00005       0.0003 
Al                        0.00005   
Pb                        0.00005       0.001      0.003
Mn             &