platinic acid as contrast agent

Eric,

I reread your observations w the above in respect to Pt/Pd blends
communicated on Dec. 5, 2003. I am curious about its having "quite an
effect". My questions:

Does it work with Pd alone?
If so, how does it compare with Sodium chloroplatinate (Na2)?
How can one reach Engelhard?

Thank you for your help. Rajul
Received on Sun Dec 21 16:30:43 2003