Expert: orlando cajamarca - 10/30/2009

Question
I have a 2oz gold ingot in 24ct gold. My question is, what do i need to add to the 24ct gold when melting it to bring it close to 9ct gold ?

Answer
Percentages by Weight  
Alloy        Gold  Silver  Copper  Zinc   Nickel   Palladium  
9 Yellow     37.5  10        45    7.5                    
9 White      37.8   0        40    10.4   11.8   
14 Yellow    58.5   4       31.2    6.3   
14 White     58.5  0.5      27      7      7   
18 Yellow    75    16        9   
18 White     75     4        4                       17  
22 Yellow    91.7   5.5      2.8  


Percentages by Volume  
Alloy        Gold  Silver   Copper  Zinc   Nickel   Palladium  
9 Yellow     22     11       56      12  
9 White      21      0       48      16      14   
14 Yellow    39      5       45      11   
14 White     39      1       38      12       10  
18 Yellow    61      24      16
18 White     63      6        7                         23
22 Yellow    84      5       10

USE THIS FORMULAS AND YOU WILL GET WHERE YOU WANT.

Hope it helps,

Orlando