phunk
Illuminator
- Joined
- Aug 10, 2007
- Messages
- 4,127
Well most of those variables don't matter. Acid isn't going to corrode more at a higher temperature. It might corrode it faster, but once all the acid is spent it's gone. And we do know the mass of the beam. One SO4 will match up with one Fe to make FeSO4. You start with H2SO4 and a big block of Fe. Do the math.
This isn't even the right reaction you're talking about.
The metal wasn't simply dissolved by sulfuric acid. It was attacked by eutectic corrosion.
This page shows some analysis of the beam in question.
The sulfur-iron eutectic that forms from the iron, acid, and heat has a much lower melting point than the steel itself. It attacks the metal at the grain boundaries, causing it to slowly flake away. You can clearly see this in the images in the article I linked.
