Nope, you'll lose a lot of tin to vapor that way. Not unless you
grossly overheat the copper, tin has a surprisingly high boiling
point (vaporization temperature) of 2602 C (4716 F). Melting
temperature does not correlate to boiling temperature. Considering
that copper has a boiling point of 2562 C (4643 F) you would
actually be vaporizing the copper before vaporizing the tin.
Interesting, we did some casual experiments with this.
We were concerned about this, and wanted to test that putting the
lower melt point metals in first makes a difference.
And it does make a difference. My friend melts the copper first then
puts the tin into the molten copper, I load a crucible with tin then
cover with granulated copper. I melt mine faster, and the colour is
We always assumed he was vaporising his tin. He wasn't boiling the
metal by any means, we uses an electric burnout furnace (not to
worry I'm making him a better furnace), and struggling to get the
copper to melt.
I'd have more chance of vaporising the tin in my setup, yet his
bronze is pink, mine is. well... bronze.
Do you have any ideas why our observation are as they are?
Regards Charles A.