JK:

Suspect, based strictly on observed phenomenon, that the EMF of fused solder
could be one of those strange situations that does not follow the rules, and
may be more passive than would be indicated by strictly looking at the table
of EMF.  Indeed, if the 63/37 eutectic alloy is an actual compound, this
would make sense.

Have no data to back this up, simply note that fused solder is REAL passive,
and has a REAL long shelf life, whereas pure Tin plating almost seems to
oxidize as you watch it....

Rudy Sedlak
RD Chemical Company

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or
847-509-9700 ext.5365
##############################################################